CN107733628A - Method and device for receiving or transmitting downlink control signal in wireless communication system - Google Patents

Method and device for receiving or transmitting downlink control signal in wireless communication system Download PDF

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CN107733628A
CN107733628A CN201710946119.1A CN201710946119A CN107733628A CN 107733628 A CN107733628 A CN 107733628A CN 201710946119 A CN201710946119 A CN 201710946119A CN 107733628 A CN107733628 A CN 107733628A
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epdcch
set
aggregation level
number
level
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CN201710946119.1A
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李智贤
徐人权
徐翰瞥
李承旻
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Lg电子株式会社
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Priority to US201261723754P priority
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Priority to CN201380049027.3A priority patent/CN104662827B/en
Publication of CN107733628A publication Critical patent/CN107733628A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. van Duuren system ; ARQ protocols
    • H04L1/1867Arrangements specific to the transmitter end
    • H04L1/1893Physical mapping arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037Inter-user or inter-terminal allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/0406Wireless resource allocation involving control information exchange between nodes
    • H04W72/042Wireless resource allocation involving control information exchange between nodes in downlink direction of a wireless link, i.e. towards terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers

Abstract

The method of receiving a downlink control signal by a user device from a wireless communication system according to an embodiment of the present invention includes: receiving an enhanced physical downlink control channel (EPDCCH) from a downlink serving base station; and monitoring a plurality of EPDCCH candidates from a set of EPDCCHs in the received EPDCCHs, wherein the minimum aggregation level of the EPDCCH candidates may be associated with the downlink bandwidth of the wireless communication system and a downlink control information (DCI) format.

Description

在无线通信系统中接收下行链路控制信号的方法和装置 Method and apparatus for receiving a downlink control signal in a wireless communication system

[0001] 本申请是原案申请号为201380049027.3的发明专利申请(申请日为2013年9月23 日、PCT申请号为PCT/KR2013/008477、发明名称为“在无线通信系统中接收或发送下行链路控制信号的方法和装置”)的分案申请。 [0001] This application is the original bill Application No. 201380049027.3 invention patent applications (filed September 23, 2013, PCT Application No. PCT / KR2013 / 008477, entitled "received or transmitted in a wireless communication system, a downlink method and apparatus "control channel signal) of the divisional application.

技术领域 FIELD

[0002] 本发明涉及无线通信系统,并且更具体地,涉及一种在无线通信系统中接收和发送下行链路控制信号的方法和装置。 [0002] The present invention relates to wireless communication systems, and more particularly, to a method and apparatus for transmitting and receiving downlink control signal in a wireless communication system.

背景技术 Background technique

[0003] 近来,要求机器对机器(M2M)通信和高数据传送速率的各种装置,诸如智能手机或平板个人计算机(PC)已经出现并得到了广泛使用。 [0003] Recently, it requires that the machine-to-machine (M2M) communication devices and various high data transfer rate, such as a smart phone or tablet personal computer (PC) and there have been widely used. 这迅速增长了需要在蜂窝网络中被处理的数据的量。 This rapid growth in the amount to be processed in a cellular network data. 为了满足这样迅速增加的数据吞吐量,最近,有效使用更多频带的载波聚合(CA)技术、认知无线电技术、用于在受限频率下增加数据容量的多天线(ΜΙΜΟ)技术、多基站协作技术等备受关注。 To meet such a rapid increase in data throughput, recently, more efficient use of the frequency band carrier aggregation (CA) technology, cognitive radio technology, a multi-antenna for increasing the data capacity at a limited frequency (ΜΙΜΟ) technology, multi-BS collaboration technology concern. 此外,演进了通信环境,使得可访问节点的密度在用户设备(UE)的附近增大。 Moreover, the evolution of communication environment, so that the density increases in the vicinity of access node a user equipment (UE),. 此处,节点包括一个或更多个天线,并且是指能够向用户设备(UE)发送射频(RF)信号/从UE接收RF信号的固定点。 Here, the node includes one or more antennas, and means capable of transmitting a radio frequency (RF) signals to / from the fixed points of the received RF signal to a user equipment UE (UE). 包括高密度节点的通信系统可以通过节点之间的协作来向UE提供更高性能的通信服务。 A communication system node comprising a high density may be higher performance of a communication service to the UE by the cooperation between the nodes.

[0004] 与各个节点作为没有协作地与UE进行通信的独立基站(BS)进行操作的传统通信方案相比,多个节点使用相同的时间-频率资源与用户设备(UE)进行通信的多节点协作通信方案具有高得多的数据吞吐量。 [0004] and each node as a conventional communication scheme in cooperation with the UE is not independent base station (BS) operating in communication compared to the plurality of nodes using the same time - frequency resource with a user equipment (UE) of a multi-node communication cooperative communication scheme has a much higher data throughput.

[0005] 多节点系统使用多个节点来执行协作通信,所述多个节点中的每一个作为基站或接入点、天线、天线组、远程无线电头端(RRH)和远程无线电单元(RRU)来操作。 [0005] The multi-node system using a plurality of nodes to perform cooperative communication, each of the base station or access point, antenna, antenna groups, a remote radio head (RRH) of said plurality of nodes and remote radio unit (the RRU) to operate. 与天线被集中在基站(BS)处的传统集中天线系统不同,在多节点系统中,多个节点彼此间隔开预定距离或更远。 Unlike the antenna is concentrated in the base station (BS) at a conventional centralized antenna system in a multi-node system, a plurality of nodes spaced from each other a predetermined distance or more. 可以通过控制这些节点的操作或调度通过这些节点发送/接收的数据的一个或更多个基站或基站控制器来管理这些节点。 These nodes can be managed by controlling the operation of the nodes or the nodes by scheduling a transmission / reception of data or more base stations or base station controller. 每个节点都连接到通过线缆或专用线来管理该节点的基站或基站控制器。 Each node is connected to the node to the management station or base station controller by a cable or a dedicated line.

[0006] 多节点系统可以被认为是一种多输入多输出(ΜΙΜΟ)系统,因为散布的节点能够通过同时发送/接收不同的数据流与单个UE或多个UE进行通信。 [0006] The multi-node system may be considered as a multiple input multiple output (ΜΙΜΟ) system, capable of transmitting nodes as scatter / receiving different data streams to a single UE or multiple UE by simultaneously communicate. 然而,由于多节点系统使用散布的节点发送信号,因此与包括在传统集中式天线系统中的天线相比,由每个天线覆盖的发送面积减小了。 However, since the transmission signal using the multi-node system node spread, in comparison with a conventional antenna comprising a centralized antenna system, covered by each antenna transmitting area is reduced. 因此,与使用MMO的传统集中式天线系统相比,可以减小每个天线在多节点系统中发送信号需要的发送功率。 Thus, compared with the conventional centralized antenna MMO system, the transmission power of each antenna can be reduced need for signal transmission in a multi-node system. 此外,减小了天线与UE之间的传输距离,以减小路径损耗并实现多节点系统中的快速数据传输。 In addition, reducing the transmission distance between the antennas and the UE, so the path loss and reduce the rapid data transmission in a multi-node system. 这可以提高蜂窝系统的传输容量和功率效率,并且不论小区中的UE位置如何都满足具有相对均匀的质量的通信性能。 This can increase the power transmission capacity and efficiency of cellular systems, and irrespective of the position of the cell in the UE is satisfied with how relatively uniform communication quality performance. 另外,多节点系统减小了在传输过程中产生的信号损失,因为连接到多个节点的基站或基站控制器相互协作地发送/接收数据。 Further, multi-node system reduces the signal loss generated in the transmission process, since a plurality of nodes connected to a base station or base station controller cooperate with each other to transmit / receive data. 当间隔开超过预定距离的节点执行与UE的协作通信时,天线之间的相关和干扰减少。 When the cooperative communication beyond a predetermined distance spaced apart nodes perform a UE, and the correlation between the antennas to reduce interference. 因此,可以根据多节点协作通信方案来获得高的信号与干扰加噪声比(SINI?)。 Thus, it is possible to obtain a multi-node communication scheme cooperative high signal to interference plus noise ratio (SINI?).

[0007] 由于多节点系统的上述优点,多节点系统与传统集中式天线系统一起使用或取代传统集中式天线系统以成为蜂窝通信的新基础,从而减少基站成本和回程网络维护成本, 同时扩展服务覆盖范围并提高下一代移动通信系统中的信道容量及SINR。 [0007] Since the above-mentioned advantage of the multi-node system using a multi-node system with the traditional centralized antenna system with or replace traditional centralized antenna system to become a new base cellular communication, thereby reducing the base station costs, and the backhaul network maintenance costs, and extended service coverage and increase the channel capacity and SINR next generation mobile communication system.

发明内容 SUMMARY

[0008] 本发明的目的是提供一种在无线通信系统中接收和发送下行链路控制信号的方法。 [0008] The object of the present invention is to provide a method for transmitting and receiving downlink control signal in a wireless communication system.

[0009] 要理解的是,本发明待实现的技术目的不限于上述技术目的,并且对于本发明所属技术领域的普通技术人员,本文中未提及的其它技术目的依据以下描述将是明显的。 [0009] It is to be understood that the technical object of the present invention to be achieved is not limited to the above technical purposes, and the present invention belongs to the technical field of ordinary skill in the art, other techniques not mentioned herein, according to the purpose of the following description will be apparent.

[0010] 技术解决方案 [0010] Technology Solutions

[0011] 本发明的目的能够通过在无线通信系统中由用户设备接收下行链路控制信号的方法来实现,该方法包括以下步骤:监视增强型物理下行链路控制信道(EPDCCH)集合中的多个EroCCH候选,以对从下行链路服务基站发送的EPDCCH进行解码;以及接收与所解码的EPDCCH对应的物理下行链路共享信道(PDSCH),其中,所述EPDCCH候选的最小聚合级别与所述无线通信系统的下行链路带宽和下行链路控制信息(DCI)格式相关联。 [0011] The object of the present invention can be implemented by a user through the method of receiving a downlink control signal in a wireless communication system, the method comprising the steps of: monitoring multiple enhanced physical downlink control channel (EPDCCH) set EroCCH a candidate EPDCCH to decode a downlink transmission from a serving base station; and receiving the corresponding decoded EPDCCH physical downlink shared channel (a PDSCH), wherein the minimum aggregation level and the candidate EPDCCH information (DCI) format and the downlink bandwidth associated with a wireless communication system downlink control.

[0012] 优选地,如果所述下行链路带宽包括至少25个资源块(RB)并且所述DCI格式是DCI 格式2、2A、2B、2C和2D中的一个,则所述最小聚合级别可以是2。 [0012] Preferably, if the bandwidth of the downlink resource comprises at least 25 block (RB) and the DCI format is DCI format 2,2A, 2B, 2C and 2D one, then the minimum aggregation level can 2.

[0013] 优选地,如果构成所述EPDCCH集合的PRB对的数目为4,则在聚合级别2、4、8和16, EPDCCH候选的数目被分别设置为8个、4个、2个和1个。 [0013] Preferably, if the number of constituting the EPDCCH PRB pair is 4, in aggregation level 4, 8 and 16, the number of EPDCCH candidates are set to 8, 4, 2 and 1 a.

[0014] 优选地,所述方法还可以包括以下步骤:从所述下行链路服务基站接收与针对聚合级别L中的每一个的EPDCCH候选的数目有关的信息。 [0014] Preferably, the method may further comprise the steps of: receiving information relating to the number of EPDCCH candidates for aggregation level L of each of the downlink from the serving base station.

[0015] 优选地,如果聚合级别(下文中为LI)被设置为大于在所述EPDCCH集合中包含的增强型控制信道元素(ECCE)的数目,则所述方法还可以包括以下步骤:将针对所述Ll的EPDCCH候选分配给其它的聚合级别。 [0015] Preferably, if the aggregation level is set (hereinafter LI) is included in the number set EPDCCH enhanced control channel elements (the ECCE) is greater than, the method may further comprise the steps of: for the Ll EPDCCH candidates allocated to other aggregation level.

[0016] 优选地,使用从所述EPDCCH集合中设置的聚合级别当中的小于所述Ll的聚合级别中的最高聚合级别到最低聚合级别的优先次序,可以尝试将针对所述Ll的EPDCCH候选分配给所述其它的聚合级别。 [0016] Preferably, the use of which is provided from the EPDCCH polymerization Ll level is less than the maximum aggregation level in the lowest priority to the aggregation level of the aggregation level, may try to assign a candidate for the Ll is EPDCCH aggregation level to the other.

[0017] 优选地,如果不能将附加的EPDCCH候选分配给小于所述Ll的聚合级别当中的特定聚合级别,则可以将所述附加的EPDCCH候选分配给继所述特定聚合级别之后的次高的聚合级别。 [0017] Preferably, if not assign additional EPDCCH candidates among the Ll to less than a certain aggregation level aggregation level, it may be the additional EPDCCH candidate to the following times after the high specific aggregation level aggregation level.

[0018]优选地,可以根据每个聚合级别L、所述EPDCCH集合中的物理资源块(PRB)对的数目⑻和每PRB对增强型控制信道元素(ECCE)的数目来决定所述EPDCCH集合中的EPDCCH候选的数目,其中,对于每个N,EPDCCH候选的数目是固定的。 [0018] Preferably, according to each aggregation level L, the EPDCCH physical resource block (PRB) number of PRB pairs per ⑻ enhanced number of control channel elements (the ECCE) to determine the EPDCCH the number of EPDCCH candidates, wherein, for each N, the number of candidates is fixed EPDCCH.

[0019] 优选地,如果存在两个EPDCCH集合,则可以将所述两个EPDCCH集合设置为具有不同的最小聚合级别。 [0019] Preferably, if there is a set of two EPDCCH, the two may be set to have a different set of EPDCCH minimum aggregation level.

[0020] 优选地,如果存在两个EPDCCH集合,则可以按以下方式来设置所述两个EPDCCH集合:各个聚合级别具有不同数目的EPDCCH候选。 [0020] Preferably, if there are two EPDCCH set, can be set as follows EPDCCH the two collections: each aggregation level having a different number of EPDCCH candidates.

[0021] 优选地,如果在第一EPDCCH集合中设置了高于在所述第一EPDCCH集合中包含的增强型控制信道元素(ECCE)的数目的聚合级别(下文中为L2),则可以将针对所述L2的EPDCCH 候选分配给第二EPDCCH集合。 [0021] Preferably, if disposed higher than the enhanced control channel elements included in the first set in a first EPDCCH EPDCCH set (the ECCE) the number of aggregation levels (L2 of hereinafter), may be assigned to the second set of EPDCCH EPDCCH candidates for the L2.

[0022] 优选地,使用从所述第一EPDCCH集合中设置的聚合级别当中的小于所述L2的聚合级别中的最高聚合级别到最低聚合级别的优先次序,可以尝试将针对所述L2的EPDCCH候选分配给所述第二EPDCCH集合。 [0022] Preferably, L2 is smaller than the maximum aggregation level in aggregation level among the aggregation level provided from the first EPDCCH set to the lowest priority level of the polymerization, may attempt to L2 for the EPDCCH to the second set of assigned EPDCCH candidates.

[0023] 优选地,如果不能将附加的EPDCCH候选分配给小于所述L2的聚合级别当中的特定聚合级别,则可以将所述附加的EPDCCH候选分配给继所述特定聚合级别之后的次高的聚合级别。 [0023] Preferably, if not assign them to the aggregation level L2 is smaller than the specific additional EPDCCH candidates aggregation level, it may be the additional EPDCCH candidate to the following times after the high specific aggregation level aggregation level.

[0024] 根据本发明的另一个方面,一种被配置为在无线通信系统中接收下行链路控制信号的用户设备包括:射频(RF)单元;以及处理器,其被配置为控制所述RF单元,其中,所述处理器被配置为监视增强型物理下行链路控制信道(EPDCCH)集合中的多个EPDCCH候选以对所述EPDCCH进行解码,并接收与所解码的EPDCCH对应的物理下行链路共享信道PDSCH,其中,所述EPDCCH候选的最小聚合级别与所述无线通信系统的下行链路带宽和下行链路控制信息(DCI)格式相关联。 [0024] According to another aspect of the present invention, a user equipment configured to receive a wireless communication system, a downlink control signal comprises: a radio frequency (RF) unit; and a processor configured to control the RF unit, wherein the processor is configured to monitor the plurality of candidate EPDCCH enhanced physical downlink control channel (EPDCCH) set to the EPDCCH decoding, the decoded and receives a corresponding physical downlink EPDCCH a PDSCH shared channel, wherein the minimum aggregation level of the downlink EPDCCH candidate link bandwidth and the downlink control radio communication system (DCI) format associated information.

[0025] 要理解的是,本发明的前述简要描述和以下详细描述二者是示例性和说明性的, 并且旨在提供对要保护的本发明的进一步说明。 [0025] is to be understood that both the foregoing brief description of the invention and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the present invention is to be protected.

[0026] 有益效果 [0026] Advantageous Effects

[0027] 根据本发明的示例性实施方式,可以在无线通信系统中有效地接收和发送下行链路控制信号。 [0027] According to an exemplary embodiment of the present invention, it can effectively receive and transmit a downlink control signal in a wireless communication system.

[0028] 本领域技术人员将要领会的是,使用本发明能够实现的效果不限于已在上文中具体描述的效果,并且本发明的其它优点将依据结合附图进行的以下详细描述被更清楚地理解。 [0028] Those skilled in the art will be appreciated that the effect of the present invention can be implemented is not limited to what has been particularly described effects in the foregoing, and other advantages of the invention will be the following detailed description taken in conjunction with the accompanying drawings be more clearly understanding.

附图说明 BRIEF DESCRIPTION

[0029] 附图被包括以提供对本发明的进一步理解,附图例示了本发明的实施方式,并且与本说明书一起用来解释本发明的原理。 [0029] The accompanying drawings are included to provide a further understanding of the invention, illustrate embodiments of the invention are shown, and together with the description serve to explain the principles of the invention.

[0030] 图1示例性地示出了用于在无线通信系统中使用的无线帧结构。 [0030] FIG. 1 shows an exemplary radio frame structure for use in a wireless communication system.

[0031] 图2示例性地示出了用于在无线通信系统中使用的下行链路/上行链路(DL/UL)时隙结构。 [0031] Figure 2 shows exemplary downlink for use in a wireless communication system / uplink (DL / UL) slot structure.

[0032] 图3示例性地示出了用于在3GPP LTE/LTE-A系统中使用的下行链路(DL)子帧结构。 [0032] FIG. 3 shows an exemplary structure of a subframe for downlink (DL) for use in the 3GPP LTE / LTE-A system.

[0033] 图4示例性地示出了用于在3GPP LTE/LTE-A系统中使用的上行链路(UL)子帧。 [0033] FIG 4 illustrates an exemplary subframe for uplink (UL) for use in the 3GPP LTE / LTE-A system.

[0034] 图5示例性地示出了EPDCCH(增强型物理下行链路控制信道)。 [0034] FIG 5 illustrates an exemplary EPDCCH (Enhanced Physical Downlink Control Channel).

[0035] 图6示例性地示出了EPDCCH(增强型物理下行链路控制信道)。 [0035] FIG. 6 illustrates an exemplary EPDCCH (Enhanced Physical Downlink Control Channel).

[0036] 图7是例示了载波聚合(CA)方案的概念图。 [0036] FIG. 7 is a conceptual diagram illustrating carrier aggregation (CA) scheme.

[0037] 图8是例示了跨载波调度方案的概念图。 [0037] FIG. 8 is a conceptual diagram illustrating a cross-carrier scheduling scheme.

[0038] 图9是例示了根据本发明的一个实施方式的决定在EPDCCH集合中包含的PRB对的数目的方法的概念图。 [0038] FIG. 9 is a conceptual diagram illustrating a method to determine a number of PRB embodiment according to the present embodiment of the invention comprises EPDCCH set in pairs.

[0039] 图10是例示了根据本发明的一个实施方式的决定在EPDCCH集合中包含的PRB对的方法的概念图。 [0039] FIG. 10 is a conceptual diagram illustrating a method in accordance with the decision of PRB pairs to one embodiment of the present invention comprises the EPDCCH set.

[0040] 图11是例示了根据本发明的一个实施方式的指示在EPDCCH集合中包含的PRB对的示例的概念图。 [0040] FIG. 11 is a conceptual diagram illustrating an example of a PRB pairs according to the instruction of the present embodiment of the invention comprises the EPDCCH set.

[0041] 图12是用于实现本发明的实施方式的装置的框图。 [0041] FIG. 12 is a block diagram of apparatus implementing the present invention.

具体实施方式 Detailed ways

[0042] 现在将详细地参考本发明的优选实施方式,在附图中例示了本发明的优选实施方式的示例。 [0042] Reference will now be made in detail to the present preferred embodiment of the invention embodiment, in the accompanying drawings illustrates an example of a preferred embodiment of the present invention. 附图例示了本发明的示例性实施方式,并且提供了本发明的更详细的描述。 The drawings illustrate exemplary embodiments of the present invention, and provides a more detailed description of the invention. 然而,本发明的范围不应当被局限于此。 However, the scope of the invention should not be limited thereto.

[0043] 在某些情况下,为了防止本发明的概念模糊不清,已知技术的结构和装置将被省略,或者将基于每个结构和装置的主要功能以框图的形式示出。 [0043] In some cases, in order to prevent ambiguous concepts of the present invention, the structures and devices of the known art will be omitted, or will be based on main functions of each structure and apparatus is shown in block diagram form. 另外,在任何可能的情况下,将在整个附图和说明书中使用相同的附图标记指代相同或相似的部件。 Further, in any case possible, the same reference numerals refer to the same or similar parts throughout the drawings and specification.

[0044] 在本发明中,用户设备(UE)是固定的或移动的。 [0044] In the present invention, a user equipment (UE) is fixed or mobile. UE是通过与基站(BS)进行通信来发送和接收用户数据和/或控制信息的装置。 UE is transmitted and received through communication with a base station (BS) user data and / or the device control information. 术语“UE”可以用“终端设备”、“移动台(MS)”、 “移动终端(MT) ”、“用户终端(UT) ”、“用户站(SS) ”、“无线装置”、“个人数字助理(PDA) ”、“无线调制解调器”、“手持式装置”等来替换。 The term "UE" can "terminal device", "mobile station (the MS)", "mobile terminal (the MT)", "user terminal (the UT)", "subscriber stations (the SS)", "wireless device", "Personal digital Assistant (a PDA) "," wireless modem "," handheld device "and replaced. BS通常是与UE和/或另一个BS进行通信的固定站。 BS is generally a fixed station that communicates with the UE and / or another BS. BS与UE和另一个BS交换数据和控制信息。 BS and the UE and another BS exchange data and control information. 术语“BS”可以用“高级基站(ABS) ”、“节点B”、“演进的节点B (eNB) ”、“基站收发器系统(BTS) ”、“接入点(AP) ”、“处理服务器(PS) ”等来替换。 The term "BS" can be "advanced base station (ABS)", "Node B", "evolved Node B (eNB)", "Base Transceiver System (BTS)", "access point (AP)", "Processing server (PS) ", etc. to replace. 在下面的描述中,基站通常被称为eNB。 In the following description, the base stations are generally referred to as eNB.

[0045] 在本发明中,节点是指能够通过与UE进行通信来向该UE发送无线电信号/从该UE 接收无线电信号的固定点。 [0045] In the present invention, it refers to a node capable of transmitting a radio signal to the UE by communicating with the UE / receiving a radio signal from a fixed point of the UE. 各个eNB都能够被用作节点。 Each eNB can be used as a node. 例如,节点可以是85、剛^顯、微微小区eNB (PENI3)、归属eNB (HeNI3)、中继器(relay)、转发器(repeater)等。 For example, node 85 may be, just ^ significant, picocell eNB (PENI3), a home eNB (HeNI3), relay (Relay), repeaters (Repeater) and the like. 此外,节点可以不是eNB。 In addition, the node can not eNB. 例如,节点可以是无线电远程头端(RRH)或无线电远程单元(RRU) ARH和RRU具有比eNB的功率水平低的功率水平。 For example, a node may be a radio remote headend (RRH) or a radio remote unit (RRU), and the ARH RRU having lower power level than the power level of the eNB. 由于RRH或RRU (以下被称为RRH/RRU)通过专用线(诸如通常是光缆)连接到eNB,因此与根据通过无线链路连接的多个eNB的协作通信比较,根据RRH/ RRU和eNB的协作通信能够平滑地执行。 Since the RRH or the RRU (hereinafter referred RRH / RRU) connected to the eNB through a dedicated line (such as a fiber optic cable typically), so compared to the communication connection according to the cooperative plurality eNB through a wireless link, according to the RRH / RRU and the eNB cooperative communication can be performed smoothly. 每个节点安装有至少一个天线。 Each node has at least one antenna is mounted. 天线可以是指天线端口、虚拟天线或天线组。 The antenna can refer to the antenna port, a virtual antenna or antenna group. 节点也可以被称为点。 Node may also be referred to as a point. 与天线都被集中在eNB中以及受控的eNB控制器中的传统集中式天线系统(CAS) (S卩,单节点系统)不同,在多节点系统中,多个节点间隔开预定距离或更长。 Concentrated and the antenna are controlled in the eNB and the eNB controller conventional centralized antenna system (CAS) (S Jie, a single node system) is different in the multi-node system, a plurality of nodes are spaced apart a predetermined distance or more long. 可以通过由控制这些节点的操作或待通过这些节点发送/接收的调度数据的一个或更多个eNB或eNB控制器来管理这多个节点。 These may be controlled by operation of a node or to be sent / received schedule data eNB or an eNB or more controller nodes managed by the plurality of nodes. 每个节点都可以连接到经由线缆或专用线来管理该相应节点的eNB或eNB控制器。 Each node can be connected via a cable or a dedicated line to manage the corresponding node eNB or an eNB controller. 在多节点系统中,相同的小区标识(ID) 或不同的小区ID可以通过多个节点被用于信号发送/接收。 In the multi-node system, the same cell identity (ID) or cell ID may be different from a signal transmitted via a plurality of nodes / reception. 当多个节点具有相同的小区ID 时,所述多个节点中的每一个都作为小区的天线组来操作。 When a plurality of nodes have the same cell ID, a node in each of the plurality of antenna groups are as cell operates. 如果多个节点在多节点系统中具有不同的小区ID,则该多节点系统可以被视为多小区(例如,宏小区/毫微微小区/微微小区)系统。 If multiple nodes have different cell ID in a multi-node system, the multi-node system may be considered as a multi-cell (e.g., macro cell / femto / pico cell) system. 当分别由多个节点配置的多个小区按照覆盖范围交叠时,由多个小区配置的网络被称为多层网络(multi-tier network) eRH/RRU的小区ID可以与eNB的小区ID相同或不同。 When the cell ID of a plurality of cells are arranged according to a plurality of nodes overlapping coverage, the network configured by a plurality of cells are called multi-layer network (multi-tier network) eRH / RRU may be the same as the cell ID of the eNB or different. 当RRH/RRU和eNB使用不同的小区ID时,RRH/RRU和eNB二者作为独立的eNB来操作。 When the RRH / RRU and the eNB use different cell ID, RRH both / RRU eNB and eNB operates as an independent.

[0046] 在根据本发明的将在下面描述的多节点系统中,连接到多个节点的一个或更多个eNB或eNB控制器可以控制所述多个节点,使得信号通过某些或所有节点被同时发送到UE或从UE接收到。 [0046] may be controlled in accordance with one of the plurality of nodes in a multi-node system will be described below, is connected to a plurality of nodes according to the present invention, one or more controllers eNB or an eNB, such that some or all of the nodes by a signal UE is simultaneously transmitted to or received from the UE. 虽然在根据每个节点的性质和每个节点的实现形式的多节点系统之间存在差异,但是多节点系统与单节点系统(例如,CAS、传统MMO系统、传统中继器系统、传统转发器系统等)区别开,因为多个节点向在预定时间-频率资源中的UE提供通信服务。 Although there is a difference between the nature and form of realization of each node of each node according to the multi-node system, the multi-node system with a single node system (e.g., CAS, traditional MMO system, the conventional repeater system, conventional repeaters system, etc.) to distinguish, since a plurality of nodes to a predetermined time - frequency resource provides communication services in the UE. 因此,本发明的针对使用某些或全部节点来执行协作数据传输的方法的实施方式可以应用于各种类型的多节点系统。 Thus, the embodiment directed to a method using some or all cooperative nodes to perform data transmission embodiment of the present invention may be applied to various types of multi-node system. 例如,节点通常是指与另一个节点间隔开预定距离或更远的天线组。 For example, the node generally refers to another node antenna groups spaced apart a predetermined distance or farther. 然而, 本发明中的将在下面描述的实施方式甚至可以应用于以下情况:其中,节点是指与节点间隔无关的任意天线组。 However, the embodiments will be described below in the present invention can even be applied to a case: where the node refers to any node antenna groups spaced independent. 例如,在包括X极(pole)(交叉极化)天线的eNB的情况下,本发明的实施方式适用于该eNB控制包括H极天线和V极天线在内的节点这样的假设。 For example, in the case where X comprises a pole eNB (Pole) (cross-polarization) of an antenna, an embodiment of the present invention is applicable to the eNB the control electrode comprises an antenna and a V H including the antenna electrode on the assumption that node.

[0047] 以下的通信方案被称为多eNB MMO或CoMP (协作多点Tx/Rx):通过该通信方案,信号经由多个发送(Tx) /接收(Rx)节点被发送/接收,信号经由从多个Tx/Rx节点中选择的至少一个节点被发送/接收,或者发送下行链路信号的节点与发送上行链路信号的节点相区分。 [0047] The following scheme is called multi-communication eNB MMO or the CoMP (coordinated multi-point Tx / Rx): through the communication program, via a plurality of transmission signals (the Tx) / receive (Rx) node is transmitted / received via the signal nodes and transmits an uplink signal to the at least one node are transmitted / received, or transmit a downlink signal from the plurality of selected Tx / Rx distinguish nodes. CoMP通信方案当中的协作传输方案可以被分类成JT (联合处理)和调度协作。 CoMP communication scheme among the cooperative transmission scheme may be classified into JT (joint processing) and scheduling collaboration. 前者可以被划分成JT (联合发送)/JR (联合接收)和DPS (动态点选择),而后者可以被划分成CS (协作调度)和CB (协作波束成形)JPS可以被称为DCS (动态小区选择)。 The former may be divided into JT (joint transmission) / JR (joint reception) and the DPS (dynamic point selection), and the latter may be divided into CS (coordinated scheduling) and CB (coordinated beamforming) JPS may be referred to the DCS (dynamic cell selection). 与其它CoMP方案相比,当执行JP时,可以生成更多的各种通信环境。 Compared with other CoMP scheme, when performing JP, may generate more various communication environments. JT是指多个节点向UE发送相同的流的通信方案, 而JR是指多个节点从UE接收相同的流的通信方案。 JT refers to a plurality of nodes transmit the same stream to UE communication scheme, and JR refers to a plurality of nodes from the UE receiving the same flow communication scheme. UE/eNB组合从多个节点接收到的信号以还原流。 UE / eNB combines the received signals from the plurality of nodes to restore flow. 在JT/JR的情况下,可以根据发射分集来提高信号传输可靠性,因为相同的流从多个节点被发送/被发送到多个节点。 In the case of JT / JR can improve the reliability of signal transmission according to a transmit diversity, because the same stream is transmitted / to be transmitted to a plurality of nodes from a plurality of nodes. DPS是指根据特定规则通过从多个节点中选择的一个节点来发送/接收信号这样的通信方案。 DPS means for transmitting / receiving a signal according to a communication scheme such a specific rule by selecting a node from the plurality of nodes. 在DPS的情况下,信号传输可靠性能够得以提高,因为在节点与UE之间具有良好信道状态的节点被选择为通信节点。 In the case of the DPS, the signal transmission reliability can be enhanced, since having a good channel state between the node and the node is selected as a UE communication node.

[0048] 在本发明中,小区是指其中一个或更多个节点提供通信服务的特定地理区域。 [0048] In the present invention, a cell refers to a specific geographical area wherein one or more nodes provide communication and services. 因此,与特定小区的通信可意味着与向该特定小区提供通信服务的eNB或节点的通信。 Thus, the communication may mean a communication with a particular cell to provide a communication service to the particular cell or eNB node. 特定小区的下行链路/上行链路信号是指来自向该特定小区提供通信服务的eNB或节点的下行链路信号/到向该特定小区提供通信服务的eNB或节点的上行链路信号。 Cell specific downlink / uplink signal is a downlink signal from the eNB or the node providing communication services to the particular cell / uplink signals to provide communication services to a particular cell or eNB node. 向UE提供上行链路/ 下行链路通信服务的小区被称为服务小区。 Provide uplink / downlink communication services to the UE is referred to as serving cell a cell. 此外,特定小区的信道状态/质量是指向该特定小区提供通信服务的eNB或节点与UE之间产生的信道或通信链路的信道状态/质量。 In addition, specific cell channel state / quality is generated between a channel state directed to the particular cell or eNB provides communication service node with the UE communication link or channel / mass. 在3GPP LTE-A系统中,UE能够使用通过该特定节点的天线端口在分配给该特定节点的CSI-RS资源上发送的一个或更多个CSI-RS (信道状态信息参考信号)来从特定节点测量下行链路信道状态。 In 3GPP LTE-A system, UE can be one or more CSI-RS (Channel State Information Reference Signal) transmitted in the CSI-RS resource assigned to the particular node via the antenna port of the particular node from a particular node measures the downlink channel state. 一般而言,相邻的节点在相互正交的CSI-RS资源上发送CSI-RS资源。 Generally, the adjacent node sends CSI-RS resources on CSI-RS resource orthogonal to each other. CSI-RS资源正交是指,CSI-RS资源配置、子帧配置和CSI RS序列中的至少一个相互不同,其中,CSI-RS资源配置用于确定携带CSI RS的符号和子载波,子帧配置用于确定基于子帧偏移和传输周期等被分配有CS I-RS的子帧。 CSI-RS orthogonal resource means, CSI-RS resource configuration, CSI RS subframe configuration and a sequence of at least mutually different, wherein, CSI-RS resource configured for determining carrying CSI RS symbols and subcarriers, subframe configuration It means for determining based on the subframe offset and the like is allocated transmission period CS I-RS frames.

[0049] 在本发明中,PDCCH (物理下行链路控制信道)/PCFICH (物理控制格式指示符信道)/PHICH (物理混合自动重传请求指示符信道)/PDSCH (物理下行链路共享信道)是指一组分别携带DCI (下行链路控制信息)/CFI (控制格式指示符)/下行链路ACK/NACK (确认/否定确认)/下行链路数据的时间-频率资源或资源元素。 [0049] In the present invention, PDCCH (Physical Downlink Control Channel) / PCFICH (Physical Control Format Indicator Channel) / PHICH (Physical Hybrid automatic repeat request indicator channel) / PDSCH (Physical Downlink Shared Channel) refers to a group / time of downlink data, respectively, carry the DCI (downlink control information) / the CFI (control format indicator) / downlink ACK / NACK (acknowledgment / negative acknowledgment) - frequency resource or resource elements. 另外,PUCCH (物理上行链路控制信道)/ PUSCH (物理上行链路共享信道)/PRACH (物理随机接入信道)是指多组分别携带UCI (上行链路控制信息)/上行链路数据/随机接入信号的时间-频率资源或资源元素。 Moreover, PUCCH (Physical Uplink Control Channel) / the PUSCH (Physical Uplink Shared Channel) / the PRACH (Physical Random Access Channel) are groups of data, respectively, carry the UCI links (uplink control information) / uplink / random access signal time - frequency resource or resource elements. 在本发明中,被分配给或属于roCCH/PCF ICH/PHICH/PDSCH/PUCCH/PUSCH/PRACH的时间-频率资源或资源元素(RE)被称为PDCCH/PCFICH/PHICH/PDSCH/PUCCH/PUSCH/PRACH RE或PDCCH/PCFICH/ PHI CH/PDSCH/PUCCH/PUSCH/PRACH资源。 In the present invention, it is assigned or belonging roCCH / PCF ICH / PHICH / PDSCH / PUCCH / PUSCH / PRACH time - frequency resource or resource element (RE) is referred to as a PDCCH / PCFICH / PHICH / PDSCH / PUCCH / PUSCH / PRACH RE or PDCCH / PCFICH / PHI CH / PDSCH / PUCCH / PUSCH / PRACH resource. 在下面的描述中,PUCCH/PUSCH/PRACH 由UE的发送相当于上行链路控制信息/上行链路数据/随机接入信号通过PUCCH/PUSCH/PRACH或在PUCCH/PUSCH/PRACH上的发送。 In the following description, PUCCH / PUSCH / PRACH corresponds to the UE by the transmission of uplink control information / uplink data / random access signal transmitted on PUCCH / PUSCH / PRACH via PUCCH / PUSCH / PRACH or. 此外,PDCCH/PCFICH/PHICH/roSCH由eNB的发送相当于下行链路数据/ 控制信息通过PDCCH/PCFICH/PHICH/PDSCH 或在PDCCH/PCFICH/PHICH/PDSCH 上的发送。 Furthermore, PDCCH / PCFICH / PHICH / roSCH corresponding to downlink data transmitted by the eNB / control information sent on the PDCCH / PCFICH / PHICH / PDSCH via PDCCH / PCFICH / PHICH / PDSCH or.

[0050] 图1例示了在无线通信系统中使用的示例性无线帧结构。 [0050] FIG. 1 illustrates an exemplary radio frame structure used in a wireless communication system. 图1的(a)例示了在3GPP LTE/LTE-A中使用的用于频分双工(FDD)的帧结构。 (A) of FIG. 1 illustrates a frame structure used in the 3GPP LTE / LTE-A for the frequency division duplex (FDD) is. 图1的⑹例示了在3GPP LTE/LTE-A中使用的用于时分双工(TDD)的帧结构。 ⑹ embodiment of Figure 1 shows a frame structure used in a 3GPP LTE / LTE-A for a time division duplex (TDD) is.

[0051] 参照图1,在3GPP LTE/LTE-A中使用的无线帧具有IOms的(307200TS)的长度,并且包括10个相同大小的子帧。 [0051] Referring to FIG. 1, for use in a wireless 3GPP LTE / LTE-A frame has a length of IOms (307200TS), and comprises 10 sub-frames of the same size. 可以对无线帧的10个子帧进行编号。 10 may be numbered subframes of a radio frame. 这里,Ts表示采样时间,并且被表示为Ts = I/(2048*15kHz)。 Here, it represents a sampling time Ts of, and is represented as Ts = I / (2048 * 15kHz). 每个子帧都具有Ims的长度并包括两个时隙。 Each subframe has a length Ims and includes two slots. 一个无线帧的20个时隙可以从0到19被顺序编号。 A radio frame of 20 slots may be sequentially numbered from 0-19. 每个时隙都具有0.5ms的长度。 Each time slot has a length of 0.5ms. 将用于发送一个子帧的时间定义为传输时间间隔(TTI)。 Time for transmitting one subframe is defined as a transmission time interval (TTI). 时间资源可以通过无线帧号(或无线帧索引)、子帧号(或子帧索引)和时隙号(或时隙索引)来区别。 Time resources may be distinguished by the radio frame number (or radio frame index), the sub-frame number (or subframe index) and a slot number (or slot index).

[0052] 无线帧可以根据双工模式被不同地配置。 [0052] The radio frame may be configured differently according to a duplex mode. 在roD模式下,通过频率来区别下行链路传输和上行链路传输,因此无线帧仅包括特定频带中的下行链路子帧和上行链路子帧中的一个。 In roD mode, to distinguish between downlink transmission and uplink transmission by a frequency, and therefore only one radio frame includes a downlink subframe and an uplink subframe of a specific frequency band. 在TDD模式下,通过时间来区别下行链路传输和上行链路传输,因此无线帧包括特定频带中的下行链路子帧和上行链路子帧二者。 In the TDD mode, to distinguish between a downlink transmission and uplink transmission by time, the radio frame includes a downlink subframe and an uplink sub-frame both the specific frequency band.

[0053] 表1示出了在TDD模式下无线帧内的子帧的DL-UL配置。 [0053] Table 1 shows the DL-UL sub in the TDD mode of a radio frame configuration.

[0054] [表1] [0054] [Table 1]

Figure CN107733628AD00091

[0056] 在表1中,D表示下行链路子帧,U表示上行链路子帧,并且S表示特殊子帧。 [0056] In Table 1, D denotes a downlink subframe, U denotes an uplink subframe, and S denotes a special subframe. 特殊子帧包括以下三个域:DwPTS (下行导频时隙)、GP (保护时段)和UpPTS (上行导频时隙)JwPTS 是为下行链路传输保留的时段,并且UpPTS是为上行链路传输保留的时段。 Special subframe comprising three domains: DwPTS (downlink pilot time slot), the GP (Guard Period) and a UpPTS (Uplink Pilot Time Slot) JwPTS is reserved for the downlink transmission period, and a UpPTS uplink reserved transmission period. 表2示出了特殊子帧配置。 Table 2 shows the special subframe configurations.

[0057] [表2] [0057] [Table 2]

Figure CN107733628AD00101

[0059] 图2例示了无线通信系统中的示例性下行链路/上行链路时隙结构。 [0059] FIG. 2 illustrates a wireless communication system is exemplary downlink / uplink slot structure. 具体地,图2例示了3GPP LTE/LTE-A中的资源网格结构。 In particular, Figure 2 illustrates a resource grid structure 3GPP LTE / LTE-A is. 每个天线端口都存在资源网格。 Each antenna ports are present resource grid.

[0060] 参照图2,一个时隙在时域中包括多个OFDM (正交频分复用)符号,并且在频域中包括多个资源块(RB) AFDM符号可以是指符号周期。 [0060] Referring to FIG 2, comprises a plurality of slots in a time domain OFDM (Orthogonal Frequency Division Multiplexing) symbols, and comprising a plurality of resource blocks (RB) AFDM symbol may refer to a symbol period in the frequency domain. 在每个时隙中发送的信号都可以由资源网格表示,该资源网格έ The signals transmitted can be represented by a resource grid in each slot, the resource grid έ

Figure CN107733628AD00102

个子载波和 Subcarriers and

Figure CN107733628AD00103

个OFDM符号组成。 OFDM symbols. 这里, Here,

Figure CN107733628AD00104

表示在下行链路时隙中的RB的数目,并且 RB represents the number of the downlink slot, and

Figure CN107733628AD00105

表示在上行链路时隙中的RB的数目。 RB represents the number of slots in the uplink.

Figure CN107733628AD00106

with

Figure CN107733628AD00107

分别取决于DL传输带宽和UL传输带宽。 Respectively, it depends on a DL transmission bandwidth and a UL transmission bandwidth.

Figure CN107733628AD00108

表示在下行链路时隙中的OFDM符号的数目,并且 It represents the number of OFDM symbols in the downlink slot, and

Figure CN107733628AD00109

表示在上行链路时隙中的OFDM符号的数目。 It represents the number of OFDM symbols in the uplink slot. 此外, In addition,

Figure CN107733628AD001010

表示构成一个RB的子载波的数目。 It denotes the number of subcarriers constituting one RB.

[0061] 根据多址接入方案,(FDM符号可以被称为SC-FDM (单载波频分复用)符号。包括在一个时隙中的OFDM符号的数目可以取决于信道带宽和循环前缀(CP)的长度。例如,在正常CP的情况下一个时隙包括7个OFDM符号,并且在扩展CP的情况下一个时隙包括6个OFDM符号。虽然为了便于描述在图2中例示了其中一个时隙包括7个OFDM符号的子帧,但是本发明的实施方式同样适用于具有不同OFDM符号数的子桢。参照图2,每个OFDM符号在频域中包括 [0061] The multiple access scheme, (FDM symbol may be referred to as SC-FDM (Single Carrier Frequency Division Multiplexing) symbols. The number of OFDM symbols included in one slot may be dependent on the channel bandwidth and a cyclic prefix ( CP) length. for example, in case of a normal CP, a slot includes 7 OFDM symbols, and one slot includes 6 OFDM symbols in case of an extended CP. Although for ease of description illustrates the case where a 2 in FIG. slot includes 7 OFDM symbols in the subframe, the embodiments of the present invention is equally applicable to the sub-frames having different numbers of OFDM symbols. Referring to Figure 2, each OFDM symbol in the frequency domain comprises

Figure CN107733628AD001011

个子载波。 Subcarriers. 子载波类型可以分类为用于数据传输的数据子载波、用于参考信号传输的参考信号子载波和用于保护频带和直流(DC)分量的空子载波。 Sub-carriers may be classified into types of data subcarriers used for data transmission, a reference signal sub-carrier and a reference signal transmission band and null subcarriers protection current (DC) component. 用于DC分量的空子载波是余下的未使用的子载波,并且在OFDM信号产生或频率上转换的过程中被映射到载波频率f〇。 Null subcarrier for the remaining DC component is unused subcarriers, and generates a frequency converter or process is mapped to a carrier frequency OFDM signal f〇. 该载波频率也被称为中心频率。 The carrier frequency is also referred to as a center frequency.

[0062] —个RB在时域中被定义为, [0062] - a RB is defined as in the time domain,

Figure CN107733628AD001012

(例如,7)个连续的0Π)Μ符号,并且在频域中被定义为: (E.g., 7) consecutive 0Π) Μ symbols, and frequency domain is defined as:

Figure CN107733628AD001013

(例如,12)个连续的子载波。 (E.g., 12) contiguous subcarriers. 作为参考,由一个OFDM符号和一个子载波组成的资源被称为资源元素(RE)或音调(tone)。 As a reference by one OFDM symbol and one subcarrier is called a resource composed of resource elements (RE) or tones (tone). 因此,一个RB包括 Accordingly, one RB includes

Figure CN107733628AD001014

个RE。 A RE. 资源网格内的每个RE都可以由时隙内的索引对(k,1)唯一地限定。 Each RE in the resource grid may be of (k, 1) is uniquely defined by the index within a slot. 这里,k是在频域中的从0到 Here, k in the frequency domain from 0 to

Figure CN107733628AD001015

的范围内的索引,并且1是从O到 Within the index range, from O to 1 and

Figure CN107733628AD00111

的范围内的索引。 Index within the range.

[0063] 针对一个子帧占据 [0063] For a sub-frame occupies

Figure CN107733628AD00112

个相同连续的子载波并分别位于该子帧的两个时隙处的两个RB被称为物理资源块(PRB)对。 Two slots at identical RB consecutive subcarriers and respectively located two of the subframe is referred to as physical resource block (PRB) pairs. 构成PRB对的两个RB具有相同的PRB编号(或PRB索引)。 Two PRB pairs constituting the RB has the same PRB numbers (or PRB index). 虚拟资源块(VRB)是用于资源分配的逻辑资源分配单元。 Virtual resource block (VRB) is a logical resource allocation unit for resource allocation. VRB具有与PRB的大小相同的大小。 VRB PRB having the same size as the size. 根据VRB到PRB的映射方案,VRB被划分成集中式VRB和分散式VRB。 The VRB to PRB mapping schemes, localized VRB is divided into a distributed VRB and VRB. 集中式VRB被映射到PRB,由此VRB编号(VRB索引)对应于PRB编号。 Localized VRB to PRB is mapped, whereby the number VRB (VRB index) corresponding to the PRB numbers. 也就是说,得到了nPRB = nVRB。 In other words, we get nPRB = nVRB. 集中式VRB被赋予从0 到NDLVRB-I的编号,并且得到NDLVRB = NDLRB。 Localized VRB are assigned numbers from 0 to NDLVRB-I, and the resulting NDLVRB = NDLRB. 因此,根据集中式映射方案,具有相同VRB编号的VRB被映射到在第一时隙和第二时隙处具有相同PRB编号的RRB。 VRB Thus, the localized mapping scheme, with the same VRB numbers are mapped to the same PRB RRB numbers in the first slot and the second time slot. 另一方面,分散式VRB 通过交织被映射到PRB。 On the other hand, are distributed VRB to PRB mapped by interleaving. 因此,具有相同VRB编号的VRB可以被映射到第一时隙和第二时隙处具有不同PRB编号的RRB。 Thus, with the same VRB numbers VRB may be mapped to the RRB of the first and second slots having different numbers of PRB. 分别位于一个子帧的两个时隙处并具有相同VRB编号的两个PRB被称为VRB对。 Respectively located at two slots of a subframe and two having the same number VRB VRB is called PRB pairs.

[0064] 图3例示了在3GPP LTE/LTE-A中使用的下行链路(DL)子帧结构。 [0064] Figure 3 illustrates a downlink (DL) for use in the 3GPP LTE / LTE-A subframe structure.

[0065] 参照图3,DL子帧被划分为控制区域和数据区域。 [0065] Referring to FIG 3, DL subframe is divided into a control region and a data region. 位于子帧内的第一时隙的前面部分中的最多3 (或4)个OFDM符号对应于被分配有控制信道的控制区域。 The front portion of the first slot in a subframe positioned at most 3 (or 4) OFDM symbols correspond to a control region to be assigned with control channels. 在下文中,DL子帧中可用于HXXH传输的资源区域被称为HXXH区域。 Hereinafter resource region, DL subframe can be used for transmission is referred HXXH HXXH region. 剩余的OFDM符号对应于被分配有物理下行链路共享信道(PDSCH)的数据区域。 The remaining OFDM symbols correspond to assigned with a physical downlink shared channel (PDSCH) in the data area. 在下文中,DL子帧中可用于PDSCH传输的资源区域被称为PDSCH区域。 Hereinafter resource region, DL subframe can be used for PDSCH transmission is called a PDSCH region. 在3GPP LTE中使用的下行链路控制信道的示例包括物理控制格式指示符信道(PCFICH)、物理下行链路控制信道(PDCCH)、物理混合ARQ指示符信道(PHICH)等。 Examples of downlink control channels used in the 3GPP LTE includes a physical control format indicator channel (PCFICH), a physical downlink control channel (PDCCH), physical hybrid ARQ indicator channel (PHICH) and the like. PCFICH 在子帧的第一个OFDM符号处被发送,并且携带与该子帧内用于控制信道的传输的OFDM符号的数目有关的信息。 PCFICH is transmitted at a first OFDM symbol of a subframe, the subframe and carries a number of OFDM symbols transmitted for the control channel information. PHICH是上行链路传输的响应,并且携带HARQ确认(ACK) /否定确认(NACK)信号。 The PHICH is a response of uplink transmission and carries HARQ acknowledgment (ACK) / negative acknowledgment (NACK) signal.

[0066] 在PDCCH上携带的控制信息被称为下行链路控制信息(DCI) ACI包含UE或UE组的资源分配信息和控制信息。 [0066] The control information carried on the PDCCH is referred to as downlink control information (DCI) ACI comprising UE or UE group resource allocation information and control information. 例如,DCI包括下行链路共享信道(DL-SCH)的传输格式和资源分配信息、上行链路共享信道(UL-SCH)的传输格式和资源分配信息、寻呼信道(PCH)的寻呼信息、DL-SCH上的系统信息、关于更高层控制消息(诸如在H)SCH上发送的随机接入响应)的资源分配的信息、针对UE组中的各个UE的发送控制命令集、发送功率控制命令、与IP语音(VoIP)的激活有关的信息、下行链路指派索引(DAI)等。 For example, the DCI includes a transport format and resource allocation information of the downlink shared channel (DL-SCH), the transport format and resource allocation information of an uplink shared channel (UL-SCH), and paging channel (PCH) paging messages , system information on the DL-SCH, information on higher layer control messages (such as H) a random access response transmitted on SCH), resource allocation, transmission control commands for UE group each UE, transmission power control commands, information, downlink activation voice over IP (VoIP) regarding assignment index (DAI) and the like. DL-SCH的传输格式和资源分配信息也被称为DL调度信息或DL授权,并且UL-SCH的传输格式和资源分配信息也被称为UL调度信息或UL授权。 Transport format and resource allocation information of the DL-SCH is also referred to as DL grant or DL ​​scheduling information, and transport format and resource allocation information of the UL-SCH is also referred to as UL scheduling information or UL grant. 在PDCCH上携带的DCI的大小和用途取决于DCI格式,并且其大小可以根据编码率而改变。 Carried on the PDCCH of DCI DCI format size depending on the use, and the size may vary depending on the coding rate. 已经在3GPP LTE中定义了各种格式,例如,用于上行链路的格式0和4,以及用于下行链路的格式I、1A、1B、1C、1D、2、2A、2B、2C、3和3A。 Various formats have been defined in the 3GPP LTE, for example, the format for the uplink 0 and 4, and I format for the downlink, 1A, 1B, 1C, 1D, 2,2A, 2B, 2C, 3 and 3A. 诸如跳频标志、关于RB分配的信息、调制编码方案(MCS)、冗余版本(RV)、新数据指示符(NDI)、关于发送功率控制(TPC)的信息、循环移位解调参考信号(DMRS)、UL索引、信道质量信息(CQI)请求、DL指派索引、HARQ处理编号、已发送的预编码矩阵指示符(TPMI)、预编码矩阵指示符(PMI)等这样的控制信息根据DCI格式被选择和合并,并且作为DCI被发送给UE。 Such as hopping flag, information about the modulation and coding scheme RB allocation (the MCS), the redundancy version (the RV), a new data indicator (NDI), information on the transmission power control (TPC), the demodulation reference signal cyclic shift (DMRS), UL index, the channel quality information (CQI) request, the DL assignment index, the HARQ process number, a precoding matrix indicator (the TPMI) has been sent, a precoding matrix indicator (PMI) and other information such as control according to a DCI format is selected and combined, and the DCI is transmitted to the UE.

[0067] 一般而言,用于UE的DCI格式取决于为UE设置的传输模式(TM)。 [0067] Generally, a DCI format for the UE depends on the transmission mode is set to UE (TM). 换句话说,只有与特定TM对应的DCI格式才可以被用于在该特定TM中配置的UE。 In other words, only the DCI TM corresponding to the specific format can be configured for the UE in this particular (TM).

[0068] PDCCH在一个或若干个连续的控制信道元素(CCE)的聚合上被发送。 [0068] PDCCH is transmitted on an aggregation of one or several contiguous control channel elements (CCE) is. CCE是用于基于无线电信道的状态给PDCCH提供编码率的逻辑分配单元。 The CCE is a logical assignment unit used to provide a coding rate to the PDCCH based on a state of a radio channel. CCE对应于多个资源元素组(REG)。 The CCE corresponds to a plurality of resource element groups (REG). 例如,一个CCE对应于9个REG,而一个REG对应于4个RE。 For example, a CCE corresponds to 9 REG, REG and a corresponding 4 RE. 3GPP LTE定义了CCE集合,其中,可以针对每个UE定位PDCCH WE可以从中检测该UE的PDCCH的CCE集合被称为PDCCH搜索空间,简称搜索空间。 3GPP LTE defines a CCE aggregation which can be detected from the PDCCH CCE aggregation UE is referred to as PDCCH search space, referred to as a search space for each UE positioning PDCCH WE. 这样的单个资源被称为roccH候选:通过该单个资源roccH能够在搜索空间内被发送。 Such a single resource is referred to as a candidate roccH: can be transmitted in the search space through the single resource roccH. 由UE监视的PDCCH候选的集合被限定为搜索空间。 The UE monitors the set of PDCCH candidates is defined as a search space. 在3GPP LTE/LTE-A中,用于DCI格式的搜索空间可以具有不同的大小并包括专用搜索空间和公共搜索空间。 In the 3GPP LTE / LTE-A, the search space for the DCI format may have a different size and comprises a specific search space and the common search space. 专用搜索空间是UE特定搜索空间,并且针对每个UE被配置。 Specific search space is a UE-specific search space, and is configured for each UE. 公共搜索空间针对多个UE被配置。 The common search space is configured for multiple UE. 限定搜索空间的聚合级别被指示如下: Aggregation level defines search spaces are indicated as follows:

[0069][表3] [0069] [Table 3]

Figure CN107733628AD00121

[0071] 根据CCE聚合级别,PDCCH候选对应于1、2、4或8个CCE^NB在搜索空间内的任意PDCCH候选上发送PDCCH (DCI),并且UE监视该搜索空间以检测该HXXH (DCI)。 [0071] The CCE aggregation level, the PDCCH candidates correspond to a 2, 4 or 8 CCE ^ NB any PDCCH candidates in the search space transmission PDCCH (DCI), the search space and the UE monitors to detect the HXXH (DCI ). 这里,监视是指根据所有监视的DCI格式尝试对相应搜索空间内的每个PDCCH进行解码。 Here, the monitoring means to decode each PDCCH in a search space corresponding to all the monitored DCI formats according attempt. UE可以通过监视多个HXXH来检测其roccH。 The UE may be detected by monitoring a plurality roccH HXXH. 因为UE不知道其PDCCH被发送的位置,所以UE尝试针对每个子帧对相应DCI格式的所有HXXH进行解码,直到检测到具有其ID的PDCCH为止。 Because the UE does not know its position PDCCH is transmitted, the UE attempts to decode all HXXH corresponding DCI format for each subframe, having up until the detection of PDCCH its ID. 这个过程被称为盲检测(或盲解码(BD))。 This process is referred to as blind detection (or blind decoding (BD)).

[0072] eNB可以通过数据区域发送针对UE或UE组的数据。 [0072] eNB may send data for the UE or UE group in the data area. 通过数据区域发送的数据可以被称为用户数据。 Data transmitted by the data area may be referred to as user data. 为了用户数据的发送,物理下行链路共享信道(PDSCH)可以被分配给数据区域。 For transmission of user data, the physical downlink shared channel (PDSCH) can be assigned to the data region. 通过PDSCH发送寻呼信道(PCH)和下行链路共享信道(DL-SCH) AE可以通过对经由PDCCH发送的控制信息进行解码来读取经由PDSCH发送的数据。 Transmitting a paging channel (PCH) by the PDSCH and the downlink shared channel (DL-SCH) AE by decoding control information transmitted through the PDCCH to read data transmitted via the PDSCH. 表示向其发送PDSCH上的数据的UE或UE组、该UE或UE组如何接收并解码PDSCH数据等的信息被包括在PDCCH中并被发送。 It represents UE or UE group to which the data is transmitted on PDSCH, the UE or the UE group receives and decodes the information how PDSCH data is included and transmitted in the PDCCH. 例如,如果特定PDCCH以称为“A”的无线电网络临时标识(RNTI)进行CRC (循环冗余校验) 掩码,并且与使用称为“B”的无线电资源(例如,频率位置)和称为“C”的传输格式信息(例如,传输块大小、调制方案、编码信息等)发送的数据有关的信息通过特定DL子帧被发送,则UE使用RNTI信息来监视H)CCH,并且具有称为“A”的RNTI的UE检测H)CCH并使用关于该I3DCCH 的信息来接收由“B”和“C”指示的roSCH。 For example, if a specific PDCCH is referred to as "A" of the radio network temporary identity (RNTI) for CRC (cyclic redundancy check) mask, and using the called "B" radio resource (e.g. frequency location) and said as "C" the transmission format information (e.g., transport block size, modulation scheme, coding information, etc.) information about the data transmission is transmitted through a specific DL subframe, the UE using RNTI information to monitor H) CCH, and having said It is the RNTI "a" detected by the UE H) CCH and receive roSCH indicated by "B" and "C" using the information on the I3DCCH.

[0073] 为了UE解调从eNB接收到的信号,用于与数据信号进行比较的参考信号(RS)是必要的。 [0073] In order to demodulate a signal received from the UE to the eNB, a reference signal (RS) to be compared with the data signal is necessary. 参考信号是指具有特定波形的预定信号,该预定信号从eNB发送到UE或从UE发送到eNB并且对eNB和UE二者都是已知的。 Refers to a predetermined reference signal is a signal having a specific waveform, a predetermined signal is transmitted from the eNB to the UE or from the UE to the eNB and sent to both the eNB and the UE are known. 参考信号也被称为导频。 Reference signal is also referred to as pilot. 参考信号被分类为由一个小区中的所有UE共享的小区特定RS和专用于特定UE的调制RS (DM RS)。 The reference signal is classified by a cell share all of the UE and a cell-specific RS modulation dedicated to a particular UE RS (DM RS). 为了针对特定UE的下行链路数据的解调而由eNB发送的DM RS被称为UE特定RS。 DM RS to be transmitted by the eNB for demodulating downlink data for a particular UE is called a UE-specific RS. 可以在下行链路上发送DM RS和CRS二者或其中一个。 Both DM RS may be transmitted on the downlink and CRS or one. 当在没有CRS的情况下仅DM RS被发送时,需要额外地提供用于信道测量的RS,因为使用与针对数据所使用的相同的预编码器发送的DM RS可以仅被用于解调。 When the DM RS is transmitted only in the absence of a CRS, the need for additionally providing the RS channel measurement, as used for the same DM RS transmission precoder data may only be used for demodulation. 例如,在3GPP LTE (-A)中,将与用于测量的附加RS对应的CSI-RS发送给UE,使得UE能够测量信道状态信息。 For example, in 3GPP LTE (-A), corresponding to the additional RS for measuring a CSI-RS transmitted to the UE, so that the UE can measure the channel state information. 与每个子帧被发送的CRS不同,CSI-RS基于信道状态随时间变化不大的事实在与多个子帧对应的各个传输周期中被发送。 Unlike CRS of each subframe is transmitted, CSI-RS channel state fact little change with time in each transmission period is sent with the corresponding plurality of sub-frames.

[0074] 图4例示了在3GPP LTE/LTE-A中使用的示例性上行链路子帧结构。 [0074] Figure 4 illustrates an exemplary uplink sub-frame structure used in the 3GPP LTE / LTE-A in.

[0075] 参照图4,UL子帧可以在频域中被划分成控制区域和数据区域。 [0075] Referring to FIG 4, UL subframe may be divided into a control region and a data region in the frequency domain. 一个或更多个PUCCH (物理上行链路控制信道)可以被分配给控制区域以携带上行链路控制信息(UCI)。 One or more PUCCH (Physical Uplink Control Channel) may be allocated to the control region to carry uplink control information (UCI). 一个或更多个PUSCH (物理上行链路共享信道)可以被分配给UL子帧的数据区域以携带用户数据。 One or more PUSCH (Physical Uplink Shared Channel) may be allocated to the data region of the UL subframe to carry user data.

[0076] 在UL子帧中,与DC子载波间隔开的子载波被用作控制区域。 [0076] In the UL subframe, the DC subcarrier spaced subcarriers are used as a control area. 换句话说,与一个UL传输带宽的两端对应的子载波被指派给UCI传输。 In other words, both ends of a UL transmission bandwidth corresponding to the subcarriers are assigned to UCI transmission. DC子载波是其余未用于信号传输的分量并且在频率上转换期间被映射到载波频率f〇。 DC subcarrier component signal during the rest is not used for transmission and converting the frequency to the carrier frequency is mapped f〇. 用于UE的PUCCH被分配给属于在载波频率下操作的资源的RB对以及属于占用两个时隙内的不同子载波的RB对的RB13PUCCH以这种方式的指派被表示为在时隙边界处分配给PUCCH的RB对的跳频。 PUCCH is allocated for the UE belonging to the resources operating at the carrier frequency belonging to the RB pair occupy different subcarriers in two slots of the RB13PUCCH RB assignment in this manner is represented as a disposition at a slot boundary RB hopping on the PUCCH of rationing. 当不施加跳频时,RB对占用相同的子载波。 When frequency hopping is not applied, RB pair occupy the same subcarrier.

[0077] PUCCH可以被用于发送以下控制信息。 [0077] PUCCH may be used to transmit the following control information.

[0078] -调度请求(SR):这是用于请求UL-SCH资源的信息并且使用通断键控(OOK)方案来发送。 [0078] - Scheduling Request (SR): This information is transmitted for requesting UL-SCH resource and using on-off keying (OOK) scheme.

[0079] -HARQ ACK/NACK:这是对于I3DSCH上的下行链路数据包的响应信号,并且指示该下行链路数据包是否已经被成功接收。 [0079] -HARQ ACK / NACK: This is for the downlink data packet on I3DSCH response signal and indicating whether the downlink data packet has been successfully received. 1比特ACK/NACK信号被发送作为对于单个下行链路码字的响应,并且2比特ACK/NACK信号被发送作为对于两个下行链路码字的响应。 1 bit ACK / NACK signal is transmitted as a response to a single downlink link codeword, and 2 bit ACK / NACK signal is transmitted as a response to two downlink codewords. HARQ-ACK响应包括肯定ACK (ACK)、否定ACK (NACK)、不连续传输(DTX)和NACK/DTX。 HARQ-ACK includes affirmative response ACK (ACK), a negative ACK (NACK), discontinuous transmission (DTX) and NACK / DTX. 这里,术语HARQ-ACK 与术语HARQ ACK/NACK和ACK/NACK可互换使用。 Here, the term the term & HARQ-ACK HARQ ACK / NACK and ACK / NACK are used interchangeably.

[0080] -信道状态指示符(CSI):这是关于下行链路信道的反馈信息。 [0080] - Channel State Indicator (CSI): This is the feedback information regarding a downlink channel. 关于MMO的反馈信息包括秩指示符(RI)和预编码矩阵指示符(PMI)。 MMO comprises feedback information regarding a rank indicator (RI) and Precoding Matrix Indicator (PMI).

[0081] UE能够通过子帧发送的控制信息(UCI)量取决于可用于控制信息传输的SC-FDMA 符号的数目。 [0081] UE can be (UCI) can be used depends on the number of SC-FDMA symbols of the control information transmitted by the sub-frame control information transmitted. 可用于控制信息传输的SC-FDMA符号对应于除了该子帧的用于参考信号传输的SC-FDMA符号以外的SC-FDMA符号。 Control information transmission may be used for SC-FDMA symbols corresponding to SC-FDMA symbols in addition to the SC-FDMA symbol for reference signal transmission in the subframe. 对于配置有探测参考信号(SRS)的子帧的情况,该子帧的最后一个SC-FDMA符号被排除在可用于控制信息传输的SC-FDMA符号之外。 In the case of a subframe arranged sounding reference signal (SRS), and a last SC-FDMA symbol of the subframe is excluded in the SC-FDMA symbols can be used for control information transmission outside. 参考信号被用于检测PUCCH的一致性。 The reference signal is used to detect the PUCCH consistency. PUCCH根据其上发送的信息支持各种格式。 PUCCH supports various formats according to the information transmitted thereon. 表4示出了在LTE/LTE-A 中在PUCCH格式与UCI之间的映射关系。 Table 4 shows the mapping in LTE / LTE-A PUCCH format and in between the UCI.

[0082] [表4] [0082] [Table 4]

Figure CN107733628AD00141

[0084] 参照表4,PUCCH格式I /1 a/1 b被用于发送ACK/NACK信息,PUCCH格式2/ 2a/ 2b被用于携带CSI储如CQI/PMI/RI),并且PUCCH格式3被用于发送ACK/NACK信息。 [0084] Referring to Table 4, PUCCH format I / 1 a / 1 b is used to transmit the ACK / NACK information, PUCCH Format 2 / 2a / 2b PUCCH format 3 is used to carry the CSI storage such as CQI / PMI / RI), and It is used to transmit ACK / NACK information.

[0085] 参考信号(RS) [0085] Reference Signal (RS)

[0086] 当在无线通信系统中发送数据包时,在传输期间会出现信号失真,因为该数据包是通过无线电信道发送的。 [0086] When transmitting data packets in a wireless communication system, signal distortion may occur during transmission, since the packet is transmitted through a radio channel. 为了在接收方处正确接收失真信号,失真信号需要使用信道信息来校正。 In order to correct the distorted signals received at the receiver, the distortion signal using channel information needs to be corrected. 为了检测信道信息,一个对发送方和接收方二者都已知的信号被发送,并且当通过信道接收到该信号时,使用该信号的失真度来检测信道信息。 In order to detect the channel information is transmitted to both a sender and receiver are known signals, and when the signal is received through the channel, distortion of the signal used to detect the channel information. 该信号被称为导频信号或参考信号。 This signal is called a pilot signal or a reference signal.

[0087] 当使用多个天线发送/接收数据时,只有当接收方知道每个发射天线与每个接收天线之间的信道状态,接收方才能够接收到正确信号。 [0087] When using multiple antennas transmission / reception data, only when the receiver knows channel state between each transmit antenna and each receiving antenna, a receiver capable of receiving just the correct signal. 因此,需要针对每个发射天线提供参考信号,更具体地,针对每个天线端口提供参考信号。 Accordingly, it is necessary to provide a reference signal for each transmit antenna, and more particularly, to provide a reference signal port for each antenna.

[0088] 参考信号可以被分类成上行链路参考信号和下行链路参考信号。 [0088] The reference signal may be classified into uplink reference signal and the downlink reference signal. 在LTE中,上行链路参考信号包括: In LTE, an uplink reference signal comprises:

[0089] i)用于信道估计以用于通过PUSCH和PUCCH发送的信息的相干解调的解调参考信号(DMRS);以及 [0089] i) for channel estimation for coherent demodulation of the information transmitted through a PUSCH and PUCCH demodulation reference signal (the DMRS); and

[0090] ii)为了eNB在不同网络的频率下测量上行链路信道质量而使用的探测参考信号(SRS) 〇 [0090] ii) a sounding reference signal to eNB uplink channel quality measurements at different frequencies used in the network (SRS) square

[0091] 下行链路参考信号包括: [0091] The downlink reference signal comprises:

[0092] i)由小区内的所有UE共享的小区特定参考信号(CRS); [0092] i) a cell-specific reference signal is shared by all UE within the cell (the CRS);

[0093] ii)仅用于特定UE的UE特定参考信号; [0093] ii) UE-specific reference signals only for a specific UE;

[0094] iii)当PDSCH被发送时用于相干解调而发送的DMRS; [0094] iii) When the PDSCH is transmitted for coherent demodulation of the DMRS is transmitted;

[0095] iv)当下行链路DMRS被发送时用于传递信道状态信息(CSI)的信道状态信息参考信号(CSI-RS); [0095] iv) DMRS for transmitting the downlink channel state of the channel state information reference signal (CSI-RS) information (CSI) is sent when;

[0096] V)为了在MBSFN模式下发送的信号的相干解调而发送的多媒体广播单频网络(MBSFN)参考信号;以及 [0096] V) for a multimedia broadcast single coherent demodulation of signals transmitted in the MBSFN mode transmitted frequency network (MBSFN) reference signal;

[0097] vi)用于估计UE的地理位置信息的定位参考信号。 Positioning reference signals geographic location information of the UE [0097] vi) for evaluation.

[0098] 参考信号可以被分类成用于信道信息获取的参考信号和用于数据解调的参考信号。 [0098] The reference signal may be classified into a reference signal and a channel information acquisition reference signal for data demodulation. 因为用于信道信息获取的参考信号被用于由UE获得与下链路传输有关的信道信息,因此它需要在宽带中被发送并由UE接收,即使该UE在特定子帧中没有接收到下行链路数据。 Because the reference signal is acquired channel information for obtaining downlink channel information from the UE regarding the transmission, so it needs to be sent by the UE in a broadband receiver, even though the UE does not receive a downlink subframe in particular link data. 该参考信号甚至被用在切换情形中。 The reference signal is used even in a handover situation. 当eNB发送下行链路信号时,用于数据解调的参考信号连同相应资源一起由eNB发送,并且被用于由UE通过信道测量对数据进行解调。 When the eNB transmits a downlink signal, a reference signal for data demodulation is transmitted together with the corresponding resource by the eNB, and is used by a UE to demodulate data through a channel measurement. 这种参考信号需要在发送数据的区域中被发送。 Such a reference signal needs to be transmitted in the region of the transmission data.

[0099] 一般EPDCCH (增强型PDCCH) [0099] Usually EPDCCH (Enhanced PDCCH)

[0100] 由于多节点系统的引入,虽然各种通信方案以实现信道质量改善的方式变得可用,但是新的控制信道的引入被要求将上述MMO方案和小区间协作通信方案应用到多节点环境。 [0100] Since the introduction of multi-node system, although various communication schemes to achieve improved quality mode channel becomes available, but the introduction of a new control channels are required between the cell and the above-described embodiment MMO cooperative communication scheme to the multi-node environment . 由于上述需要,正在集中讨论新的控制信道,即增强型HXXH(EroCCH)的引入,并且该新的控制信道可以被分配给数据区域(以下被称为PDSCH区域),而不是传统的控制区域(以下被称为PDCCH区域)。 Because of these needs are focused on new control channel, i.e. the introduction of enhanced HXXH (EroCCH), and the new control channel may be assigned to the data region (hereinafter referred to as a PDSCH region), rather than the conventional control region ( hereinafter referred to as a PDCCH region). 其结果是,节点控制信息可以按照UE通过EPDCCH被发送,使得传统PDCCH区域不足的问题也可以得到解决。 As a result, the node control information may be transmitted in accordance with EPDCCH UE by such conventional PDCCH region shortage problem can be solved. 作为参考,EPDCCH不被应用于传统的UE,并且可以仅由LTE-AUE接收。 As a reference, EPDCCH not be applied to a conventional UE, and can be received only by LTE-AUE.

[0101] 图5是例示了载波聚合(CA)方案的概念图。 [0101] FIG. 5 is a conceptual diagram illustrating carrier aggregation (CA) scheme.

[0102] 参照图5,EPDCCH可以限定和使用被配置成发送数据的PDSCH区域的某些部分,并且UE需要执行盲解码于检测EPDCCH存在或不存在。 [0102] Referring to FIG 5, EPDCCH can be defined and configured to transmit data using some portion of the PDSCH region, and the UE needs to perform blind decoding to detect the presence or absence of EPDCCH. EPDCCH执行与在传统PDCCH中相同的调度操作(即,roSCH、PUSCH控制)。 EPDCCH performs the same operation schedule (i.e., roSCH, PUSCH control) in a conventional PDCCH. 如果连接到与在RRH中相同的节点的UE的数目增加,则更多的EPDCCH被分配给H)SCH区域,使得要由UE执行的盲解码次数增加,导致了复杂性增加。 If the UE is connected to the same increase in the number of nodes in the RRH, the more EPDCCH is allocated to H) SCH region, so that the number of blind decoding to be performed by the UE increases, resulting in increased complexity.

[0103] 同时,需要考虑用于针对多个UE对EPDCCH进行复用的方法。 [0103] At the same time, we need to be considered for EPDCCH method for multiplexing a plurality of UE. 更详细地,根据本发明所提出的复用方案,在配置了公共资源区域(即,公共PRB集合)的情况下,多个UE的EPDCCH 可以被交叉交织到频域或时域。 In more detail the case where, according to a multiplexing scheme proposed by the present invention, arranged in the region of the common resources (i.e., public PRB sets), EPDCCH UE may be a plurality of cross-interleaved to the frequency or time domain.

[0104] 图6是例示了用于针对多个UE对EPDCCH进行复用的方法的概念图。 [0104] FIG. 6 is a conceptual diagram illustrating a method for a UE of the plurality of EPDCCH multiplexing.

[0105] 具体地,图6的(a)示出了基于PRB对来配置公共PRB集合并基于该公共PRB集合来执行交叉交织的示例。 [0105] Specifically, shown in FIG. 6 (a) an example of PRB is configured based on the common set of PRB based on the common set of PRB perform cross interleaving. 相比而言,图6的⑹示出了基于PRB来配置公共PRB集合并基于该公共PRB集合来执行交叉交织的另一个示例。 In contrast, ⑹ FIG. 6 shows another example of PRB is configured based on a common set of PRB PRB based on the common set of cross-interleaving performed. 图6的(a)和图6的⑹的方案具有以下优点:能够获得时间/频率域的扩展了多个RB的分集增益。 And has the advantage ⑹ embodiment of FIG. 6 FIG. 6 (a): to obtain time / frequency-domain spreading diversity gain plurality RB.

[0106] 载波聚合(CA) [0106] Carrier aggregation (CA)

[0107] 将在下文中详细描述载波聚合。 [0107] will be described in detail below carrier aggregation. 图7是例示了载波聚合(CA)的概念图。 FIG 7 is a conceptual diagram illustrating carrier aggregation (CA) is.

[0108] 载波聚合是指这样一种方法:用于允许UE使用多个频率块或(逻辑)小区作为一个大的逻辑频带,以便为无线通信系统提供更宽的频率带宽,其中多个频率块或(逻辑)小区中的每一个都由多个上行链路资源(或CC)和/或多个下行链路资源(或者CC)。 [0108] Carrier aggregation refers to a method: for allowing a UE or a plurality of frequency blocks (logic) logic cell as a large band, in order to provide a wider frequency bandwidth radio communication system in which a plurality of frequency blocks or (logic) by each of the plurality of uplink resource (or CC) in a cell and / or a plurality of downlink resource (or CC). 为了便于描述和更好理解本发明,载波聚合将在下文中被称为分量载波(CO。 For convenience of description and better understanding of the present invention, it will be referred to as carrier aggregation of component carriers (CO hereinafter.

[0109] 参照图7,整个系统带宽(系统BW)包括IOOMHz的带宽作为逻辑带宽。 [0109] Referring to FIG. 7, the entire system bandwidth (system BW) comprises a logic IOOMHz bandwidth as bandwidth. 整个系统带宽(系统BW)包括五个分量载波(CC),并且每个CC都具有20MHz的最大带宽。 Entire system bandwidth (system BW) comprises five component carriers (CC), and each having a maximum CC 20MHz bandwidth. 所述CC包括一个或更多个物理上连续的子载波。 The CC comprises a physical or more consecutive subcarriers. 尽管在图7中所有的CC都具有相同的带宽,但是这仅仅是示例性的并且这些CC可以具有不同的带宽。 Although all have the same bandwidth CC in FIG. 7, but this is merely exemplary and the CC may have different bandwidths. 尽管在图8中CC在频域中被示出为连续的,但是图8 仅示出了逻辑概念,因此这些CC可以是物理上连续的或分离的。 Although in FIG CC in the frequency domain it is shown as a continuous 8, but FIG. 8 shows only a logical concept, these CC may be physically contiguous or separated.

[0110] 不同的中心频率可以用于这些CC,或者一个公共中心频率可以用于物理上连续的CC。 [0110] different center frequencies may be used for the CC, or a common center frequency of a CC may be used to physically continuous. 例如,在图7中,如果假定所有CC都是物理上连续的,则可以使用中心频率A。 For example, in FIG. 7, if it is assumed that all CC are physically contiguous, you can use the center frequency A. 如果假定这些CC不是物理上连续的,则中心频率A、中心频率B等可以被用于相应的CC。 If it is assumed continuous center frequency A, B, the center frequency is not physically on the CC may be used for the corresponding CC.

[0111] 在本说明书中,CC可以对应于传统系统的系统频带。 [0111] In the present specification, CC system band may correspond to a conventional system. 通过基于传统系统限定CC,能够利于在演进的UE和传统的UE共存的无线通信环境中的后向兼容性和系统设计。 CC is defined by the system based on the conventional, it can be beneficial to the UE and the UE conventional coexist in a wireless communication environment evolved backward compatibility and design systems. 例如,如果LTE-A系统支持载波聚合,则每个CC可以对应于LTE系统的系统频带。 For example, if the LTE-A system supports carrier aggregation, each CC may correspond to the system band of the LTE system. 在这种情况下,CC可以具有诸如1.25、2.5、5、10或20MHz这样的任一个带宽。 In this case, CC may have such as 1.25,2.5,5,10 20MHz or any one bandwidth.

[0112] 在整个系统频带通过载波聚合被扩展的情况下,以CC为单位来限定用于与各个UE 的通信的频带。 [0112] In the case where the entire system band by the carrier aggregation is expanded to define a CC units of band communication with each UE. UE A可以使用IOOMHz (其是整个系统频带的带宽)并使用所有五个分量载波执行通信。 UE A may use IOOMHz (which is the bandwidth of the entire system band) using all five component carriers to perform communication. UE Bl至B5中的每一个可以只使用20MHz的带宽并使用一个CC执行通信。 UE Bl to B5 each can only use a 20MHz bandwidth and performs communication using a CC. UE Cl和C2中的每一个可以使用40MHz的带宽并使用两个CC执行通信。 UE Cl and C2 may each 40MHz bandwidth and perform communication using the two CC. 这两个CC可以是连续的或不连续的。 Both CC may be continuous or discontinuous. UE Cl使用两个不连续的CC,而UE C2使用两个连续的CC。 UE Cl using two discrete CC, the UE C2 two consecutive CC.

[0113] 可以在LTE系统中使用一个下行链路CC和一个上行链路CC,而可以在LTE-A系统中使用若干个CC。 [0113] may use a downlink CC and an uplink CC in the LTE system, but may be used in a number of CC LTE-A system. 此时,通过控制信道调度数据信道的方法可以被划分成链接(linked)载波调度方法和跨载波调度方法。 In this case, the link may be divided into (linked) carrier scheduling method and a method of cross-carrier scheduling method of scheduling data channel by channel.

[0114] 更具体地,在链接载波调度方法中,与使用单个CC的LTE系统类似,经由特定CC发送的控制信道经由该特定CC仅调度数据信道。 [0114] More specifically, a carrier in the link scheduling method, the LTE system uses a single CC like, via a specific control channel transmitted via the CC CC scheduling only specific data channel.

[0115] 相反,在跨载波调度方法中,经由使用载波指示符字段(CIF)的主CC发送的控制信道调度经由该主CC或另一个CC发送的数据信道。 [0115] In contrast, in a cross-carrier scheduling method, the control channel transmitted via scheduled using a carrier indicator field (CIF) is transmitted via the main main CC CC CC or another data channel.

[0116] 图8是跨载波调度方案的概念图。 [0116] FIG. 8 is a conceptual cross-carrier scheduling scheme. 具体地,如可以从图8看出的,分配给中继节点(RN)的小区(或CC)的数目被设置为3,如上所述使用CIF来执行跨载波调度。 In particular, as can be seen from Figure 8, the number of cells (or CC) is assigned to a relay node (RN) is set to 3, is performed as described above using the CIF cross-carrier scheduling. 在这种情况下, 假定下行链路小区(或CO #A被设置为主下行链路CC (S卩,主小区PCell),并且其余的CC#B 和此被用作辅小区(SCell)。 In this case, it is assumed that a downlink cell (or CO #A is set as a main downlink CC (S Jie, the PCell primary cell), and the remaining CC # B, and this is used as a secondary cell (SCell).

[0117] 本发明涉及EPDCCH结构,并且更具体地,涉及用于选择分配给EPDCCH的PRB的数目的方法和用于用信号发送该选择方法的方法。 [0117] The present invention relates to EPDCCH structure, and more particularly, to a method of allocating the number of PRB EPDCCH relates to a method for selecting and transmitting signals using the selection method used.

[0118] EPDCCH被设计为提高控制信道的容量,并且可以基于DMRS被发送到传统的PDSCH 区域以获得波束成形区域。 [0118] EPDCCH is designed to enhance the channel capacity, and may be transmitted to the DMRS based PDSCH region to obtain a conventional beam forming region. 对于EPDCH传输,eNB (或网络)可以用信号向各个UE发送关于EPDCCH传输区域的特定信息。 For EPDCH transmission, eNB (or a network) can send information about the specific region EPDCCH transmission signals to each UE. 更具体地,eNB可以向UE告知K个EPDCCH集合。 More specifically, eNB may inform the K EPDCCH set to the UE. 每个EPDCCH集合包括N个PRB对,并且不同的EPDCCH集合可以具有不同的N值。 Each EPDCCH set includes N PRB pairs and the different sets may have different EPDCCH N values. 此外,每个EPCCH集合可以被分类成集中式EPDCCH传输目的和分散式EPDCCH传输目的,并且每个EPDCCH集合可以与另一个EDPCCH集合全部或部分重叠。 Further, each EPCCH set may be classified into centralized and decentralized EPDCCH transmission purposes EPDCCH transmission object, and each set may EPDCCH EDPCCH with another set of all or partially overlap.

[0119] N的配置 [0119] N configuration

[0120] 指示构成每个EPDCCH集合的PRB对的数目的N可能受到EPDCCH的调度小区似下被称为PCell)的带宽(BW)和通过EPDCCH调度的小区(以下被称为SCell)的带宽(BW)的影响。 [0120] indicating the number of constituting each PRB pairs N EPDCCH set may be bandwidth (BW) scheduling cell under similar EPDCCH referred PCell) and a cell through scheduling EPDCCH (hereinafter referred SCell) bandwidth ( the impact BW) of. 在PCe 11的情况下,如果没有给出足够的BW (例如,窄带宽系统),则能够被分配用于EPDCCH 的资源的量是有限的,使得需要向N指派相对小的值。 In the case of PCe 11, if not give enough BW (e.g., narrow bandwidth system), the amount of resources can be allocated for the EPDCCH is limited, so that the need to assign a relatively small value to the N. 因此,根据PCell BW,限制了能够被分配用于EPDCCH的RB的数目。 Thus, according to the PCell BW, it limits the number that can be allocated for the EPDCCH RB. 如果PCe 11 BW与被分配给EPDCCH传输的N的上限相关联,则SCell BW与被分配给EPDCCH传输的N的下限相关联。 If PCe 11 BW limit associated EPDCCH N are assigned to the transmission, BW and the lower limit of N is assigned to the associated EPDCCH transmission is SCell. SCell BW越大,EDPCCH DCI净荷就越大,使得发送相应DCI所需的RB的最小数目也增大。 SCell BW larger, EDPCCH DCI greater payload, such that the minimum number of RB corresponding to the transmission of DCI required also increases. 因此,考虑到PCell BW和SCell BW,与用于根据SCell BW的EPDCCH传输所需的RB的最小数目相比,N需要被指派一个更高的值,并且用于在PCell中使用的N的上限被设置为能够被分配给EPDCCH传输的RB的最大数目。 Thus, considering the PCell and SCell BW BW, compared to the RB according to the minimum number required for the EPDCCH transmission SCell BW, N needs to be assigned a higher value and the upper limit for the use of N in the PCell is set to the maximum number of RB can be allocated to EPDCCH transmission.

[0121] 因此,能够根据发送EPDCCH的PCel 1的BW来适当选择N值。 [0121] Thus, the value of N can be appropriately selected according to the PCel 1 EPDCCH transmission BW is. 在一个示例中,特定阈值BW值(Tl)被决定成使得N在为Tl的BW处被设置为Nl或更小。 In one example, a certain threshold value BW (Tl) is determined such that the N is set at Tl Nl to BW or less. 如果该BW值大于Tl,则N可以被设置为N2 (NKN2)。 BW If the value is greater than Tl, then N may be set to N2 (NKN2). 在这种情况下,Nl和N2中的每一个可以是能够配置的N值的集合,并且阈值可以被分类成两个或更多个的梯度(step)。 In this case, a set of Nl and N2 may be able to configure each value of N, and the threshold value may be classified into two or more gradients (step). 例如,N可以被决定为由以下等式表示。 For example, N may be determined by the following equation expressed.

[0122] 如果BW彡Tl,则Nl (例如,{2,4}) [0122] If BW San Tl, the Nl (e.g., {2,4})

[0123] 否则,N2(例如,{4,8}) [0123] Otherwise, N2 of (e.g., {4,8})

[0124] 也就是说,N可以在等于或小于Tl个RB的BW处被设置为2或4,并且N可以在大于Tl 个RB的BW处被设置为4或8。 [0124] That is, N may be equal to or less than a Tl at BW RB is set to 2 or 4, and N may be set to 4 or 8 in the BW is larger than a Tl RB.

[0125] 在另一种方法中,能够根据通过EPDCCH调度的SCell的BW来适当选择N值。 [0125] In another approach, the N value can be appropriately selected according to the SCell BW EPDCCH by scheduling. 在一种方法中,决定特定阈值BW值和T2值,使得N可以在小于T2的BW处被设置为N3并且N可以在大于T2的BW处被设置为M (N3彡N4)。 In one approach, specific decisions BW threshold value T2 and the value of N may be set so that T2 is less than BW is at N3 and N may be set to M (San N3 N4) in the BW is larger than T2. 在这种情况下,N3和M中的每一个可以是能够配置的N值的集合,并且可以根据两个或更多个梯度来配置阈值。 In this case, the set values ​​N and M N3 in each of which can be can be configured, and the threshold value may be configured according to two or more gradients. 例如,N可以被决定为由以下等式表不。 For example, N may be determined by the following equation table is not.

[0126] 如果BW彡T2,则N3(例如,{2,4}) [0126] If BW San T2, the N3 (e.g., {2,4})

[0127] 否则,N4(例如,{4,8}) [0127] Otherwise, N4 (e.g., {4,8})

[0128] 也就是说,N可以在等于或小于T2个RB的BW处被设置为2或4,并且N可以在大于T2 个RB的BW处被设置为4或8。 [0128] That is, N may be equal to or less than T2 at a BW RB is set to 2 or 4, and N may be greater than T2 at a BW RB is set to 4 or 8.

[0129] 可以同时应用PCe 11的阈值和SCe 11的阈值。 [0129] may be applied simultaneously PCe thresholds 11 and 11 SCe threshold. 在这种情况下,在来自PCe 11和SCe 11 的可用BW组合当中的特定的BW组合中,PCe 11的可配置的N值和SCe 11的可配置的N值可以彼此不同。 In this case, the particular combination of BW BW compositions available from PCE 11 and 11 among the SCe, the PCE may be configured and the value of N 11 N SCe configurable value 11 may be different from each other. 因此,可以使用具有来自PCe11和SCe11的N值当中的较小的N值的小区的配置值。 Thus, the configuration values ​​may be used with smaller cells among the N value from the N values ​​of PCe11 and SCe11. 换句话说,可以根据SCell BW来决定可配置的N值的范围,并且N可以被限制到能够被分配给PCe 11的RB的最大数目的范围。 In other words, the range N may be determined according to the configuration values ​​may SCell BW, and may be limited to N can be assigned to PCe RB 11 maximum number range.

[0130] 例如,如果PCe 11的阈值和SCe 11的阈值被同时应用到上述示例,则可用的N的配置范围被显示在图9中。 [0130] For example, if the threshold 11 and PCe SCe threshold 11 is simultaneously applied to the above-described example, the range of configurations available N is shown in Fig. 如果在SCell支持{4,8} (S卩,调度小区的BW彡Tl且调度小区的BW>T2) 的条件下PCell能够支持多达{2,4},则可用的N配置范围可以满足PCell的值。 If SCell support under conditions {4,8} (S Jie, scheduling cell and the scheduling BW BW San cell Tl> T2) of PCell can support up to {2,4}, then the arrangement range available to meet PCell N value. 同样,如果在PCell支持{4,8} (S卩,调度小区的BW>T1且调度小区的BW彡T2)的条件下SCell支持多达{2, 4},则可用的N配置范围可以满足SCell的值。 Similarly, if the support PCell {4,8} (S Jie, scheduling cell BW> T1 cell and the scheduling BW San T2) supports up condition SCell {2, 4}, N configuration are available to meet the range the value of the SCell.

[0131] 用于在完成N的决定之后用信号向UE通知N的方法的详细描述如下。 [0131] Detailed description of a method for notifying N follows signaled to the UE after completion of the N decision.

[0132] 将在下文中详细描述一种用于通过RRC信令将可配置的N的索引值通知给UE的方法。 [0132] Method N is an index value notification method for the configurable by RRC signaling to the UE will be described in detail below. 如果像在使用阈值Tl的情况中那样给出两个可配置的N值,则能够更简单地使用则1位标志。 If the two values ​​of N as given configurable as in the case of using a threshold value Tl, it is possible to more easily use the 1-bit flag. 例如,如果给出“flag = 0”并且“BW彡ΤΓ,则N被设置为2 (N = 2)。如果给出“flag = 0” 并且“BW>T1”,则N被设置为4 (N=4)。如果给出“flag=l”并且“BW彡ΤΓ,则N被设置为4 (N = 4)。 For example, if the given "flag = 0" and "BW San ΤΓ, then N is set to 2 (N = 2). Given a" flag = 0 "and" BW> T1 ", then N is set to 4 ( N = 4). given a "flag = l" and "BW San ΤΓ, then N is set to 4 (N = 4). 如果“flag = l”并且给出“BW>T1”,则N被设置为8 (Ν=8)。 If the "flag = l" and gives "BW> T1", then N is set to 8 (Ν = 8).

[0133] 在另一种方法中,配置特定阈值,UE确定目标值是否大于该阈值,使得能够确定/ 选择N值中的哪一个将被使用。 [0133] In another method, the configuration of a specific threshold, the UE determines whether the target value is greater than the threshold value, making it possible to determine / choose which one of the N values ​​to be used. 可以按可用的RE/PRB对的数目等来配置该阈值。 The threshold value may be configured by the available RE / number and the like of the PRB.

[0134] -可用的RE/PRB对的数目〈Xthresh (= 104) [0134] - the number of available RE / PRB pairs <Xthresh (= 104)

[0135] 如果BW彡Tl,则N= {4} [0135] If BW San Tl, then N = {4}

[0136] 否则,N=⑻ [0136] Otherwise, N = ⑻

[0137] -可用的RE/PRB对的数目彡Xthresh (=104) [0137] - the number of available San Xthresh RE / PRB pair (= 104)

[0138] 如果BW彡Tl,则N= {2} [0138] If BW San Tl, then N = {2}

[0139] 否则,N=⑷ [0139] Otherwise, N = ⑷

[0140] 例如,上述方法能够被定义为上述表达式,并且其详细描述被显示在图10中。 [0140] For example, the method described above can be defined as the above-described expression, and a detailed description thereof is shown in FIG. 10.

[0141] EPDCCH集合的PRB分配 [0141] PRB allocated set EPDCCH

[0142] 如上所述,每个EPDCCH集合都可以由N个PRB对组成,并且UE可以通过RRC信令来获得构成EPDCCH集合的N个PRB对的配置。 [0142] As described above, each can be set EPDCCH of N PRB pairs, and the UE may be configured to obtain N PRB pairs constituting EPDCCH set by RRC signaling. 在这种情况下,关于来自所有的PRB集合当中的哪个PRB将被用作EPDCCH的特定信息可以被应用于使用以下方案的UE。 In this case, specific information about the PRB which from among all the PRB sets will be used as EPDCCH UE may be applied using the following scheme.

[0143] 将在下文中描述一种用于使用位图的方法。 [0143] will be described below using a process for bitmap. 例如,假定整个DL系统带宽包括Ntcit个RB,可以使用队。 For example, assume the entire DL system bandwidth includes Ntcit a RB, the team can use. *个比特来用信号发送关于每个RB是否被分配给EPDCCH的特定信息。 * Bits are used to send specific information as to whether each RB is allocated to EPDCCH signaled. 如果第η个比特被使能(S卩,如果第η个比特用“Γ表示),则这意味着第η个RB被分配给EPDCCH。指示RB的比特不总是被连续映射,并且可以根据预定规则按照RB-对-比特的格式进行映射。两个或更多个RB被配置成形成第一组,使得EPDCCH可以被分配给该RB组并且可以由位图来指不。 If the first bit is enabled η (S Jie, η if the first bit with "Γ shown), this means that the first η th RB is allocated to EPDCCH. RB indicating bits are not always mapped continuously, and may RB- according to a predetermined rule - mapping format of two or more bits RB is configured to form a first group, such that EPDCCH may be assigned to the RB group and can not refer to the position of FIG.

[0144] 为了便于描述和更好理解本发明,图11示出了其中整个频带包括15个RB的示例。 [0144] For convenience of description and better understanding of the present invention, FIG 11 shows an example in which the entire frequency band includes 15 RB. 在图11 中,位图可以以(a) 010000100001000、⑹ 111000111000111 和(C) 000001011010110 中的任何形式来配置。 In Figure 11, the bitmap may be (a) 010000100001000, ⑹ 111000111000111 be configured in any form, and (C) 000001011010110 in. 假定3个RB被配置为形成如以形式(b)所示的一个组,位图可以被配置为如在“⑹1010Γ中所示的。 Assuming 3 RB is configured as shown in (b) is formed as a group of the form, bitmaps may be configured as shown in the "⑹1010Γ in.

[0145] 在另一种方法中,起始RB的编号和连续的RB的数目的组合可以被发出。 [0145] In another approach, the number of consecutive RB number and combination of the starting RB can be issued.

[0146] 在另一种方法中,根据预定模式用信号发送相应模式的索引,使得被分配到EPDCCH的PRB信息能够被传送。 [0146] In another method, a predetermined pattern in accordance with the index corresponding transmission mode signal, such that the EPDCCH PRB allocated to the information to be transmitted. 例如,假定N个RB被分配给EPDCCH,可以考虑和使用向下取整(floor) (S卩,系统BW/N)模式,其中,各个RB按照相等的间隔分散在整个系统频带内。 For example, assume that N RB is allocated to a EPDCCH, can be considered and used rounded down (floor) (S Jie, system BW / N) mode, wherein each RB equal intervals dispersed throughout the system band. eNB或BS可以使用向上取整(ceiling) (log2 (模式的数目))个比特来指示对应的分配。 eNB or BS may be used (number of log2 (mode)) rounded up (ceiling) bits to indicate the corresponding allocation.

[0M7]图11的(a)示出了Ntclt=15和N = 3的示例性情况。 [0M7] FIG. 11 (a) shows an exemplary case where Ntclt = 15 and N = 3 a. 如果针对整个系统频带限定了等间距分散模式,则构成特定模式的多个RB之间的间距被表示为“15RB/3 = 5RB”并且存在5个模式。 If the frequency band for the system defines a pitch like dispersion pattern constituting the spacing between the plurality of particular pattern RB is represented as "15RB / 3 = 5RB" and there are five modes. 如果各个模式的最小的RB索引被用作模式索引,图11的(a)示出了5个模式当中的对应于“模式索引=Γ的特定模式。 If the minimum index of each RB is used as the mode index mode, FIG. 11 (a) shows a corresponding "mode index = Γ particular mode among the five modes.

[0148]通过不是由任意起始PRB索引限定的间隔与系统带宽/N的组合,与相应的起始PRB 索引间隔开预定距离的多个PRB能够被选择用于EPDCCH。 [0148] are not defined by an arbitrary interval starting system bandwidth PRB index / the combination of N, starting with the corresponding plurality of spaced PRB PRB index can be a predetermined distance selected for EPDCCH. 在这种情况下,如果构成相应EPDCCH集合的PRB对的索引(或位置)超过系统BW的范围,则可以使用该相应PRB对索引(或位置)的循环移位计算方案。 In this case, if the PRB configuration corresponding to the index set of EPDCCH (or position) exceeds the range of the system BW, you can use the corresponding cyclic shift calculation scheme PRB index (or position). 在这种情况下,该循环移位计算方案可以由“PRB对索引(或位置)对构成系统BW的PRB对的数目取模”来表示。 In this case, the program calculates the cyclic shift may be represented by "PRB index (or position) of the number of PRB pairs constituting the modulo system BW."

[0149] 同样地,也可以使用未由任意起始PRB索引限定的间隔和系统BW/N的组合来构造模式,并且任意模式可以被限定成使得索引可以被分配给每个模式。 [0149] Similarly, may also be used in combination of any undefined starting PRB index interval and system BW / N to construct mode and any mode may be defined such that the index can be allocated to each mode.

[0150] 聚合级别和对相应盲解码次数的构造 [0150] aggregation level and the number of blind decoding configurations of the respective

[0151] 另一方面,如果按与窄带系统中相同的方式,被分配给EPDCCH的N (即,PRB对的数目)具有低的值,则可能难以构造高聚级别(AL)中的搜索空间。 [0151] On the other hand, if in the same manner with narrowband systems, is assigned to the EPDCCH N (i.e., the number of PRB pairs) has a low value, it may be difficult to construct a search space high-level poly (AL) of . 例如,如果N = 2被配置,各个PRB对包括4个ECCE,则可能无法配置AL = 8或更高的搜索空间。 For example, if N = 2 is configured, for each PRB include the ECCE 4, may not be arranged AL = 8 or higher in the search space. 如果各个PRB对包括2个ECCE,则可能无法配置AL = 4或更高的搜索空间。 If each PRB pair includes 2 ECCE, you may not be arranged AL = 4 or higher in the search space. 因此,相应AL的搜索空间可以被分配给另一个AL。 Thus, the corresponding AL search space can be assigned to another AL. 即,UE的EPDCCH集合的盲解码复杂性卿,盲解码尝试的次I»被恒定保持,导致了性能改善。 That is, the UE EPDCCH set of blind decoding complexity Qing, times of blind decoding attempts I »is kept constant, resulting in improved performance.

[0152] 因此,可以根据被分配给UE的每个EPDCCH集合来不同地配置每个AL的盲解码的次数(即,PDCCH候选的数目)。 [0152] Thus, the number of blind decoding may be different from each AL are arranged (i.e., the number of PDCCH candidates) is set according to each EPDCCH assigned to the UE. 例如,如果配置了大于包含在EPDCCH集合中的ECCE的数目的AL, 则这些相应AL的所有ePDCCH候选可以被分配给最低的AL或者可以被尽可能公平地分配给低于该相应AL的AL。 For example, if the configuration is larger than the number contained in the ECCE AL EPDCCH set, all these respective AL ePDCCH candidates may be assigned to the lowest possible AL or may be fairly assigned to the respective AL, AL below. 例如,假定{6,6,2,2}被指派给与AL= {1,2,4,8}相关联的PDCCH或ePDCCH候选(以下简称为候选),如果N = 2并且每PRB对ECCE的数目卿,ECCE/PRB对的#)被设置为2,则每EPDCCH集合的ECCE数目(ECCE/EPDCCH集合的#)被设置为4,不执行针对AL = 8 的盲解码。 For example, {6,6,2,2} are given assigned assumed AL = {1,2,4,8} PDCCH or ePDCCH associated candidate (hereinafter, abbreviated as candidates), if N = 2 and each PRB pairs ECCE Qing number, ECCE / PRB pairs #) is set to 2, the number of each EPDCCH set ECCE (ECCE / EPDCCH set #) is set to 4, does not perform blind decoding for AL = 8. 因此,能够分配给AL = S的两个候选不被最初分配(①),可以被分配给与最低的AL对应的AL=I (②),或者可以在从最低的AL到可允许的最高的AL的范围内被连续分配(③)。 Accordingly, it is possible to assign two candidates AL = S is not initially allocated (①), may be assigned to the corresponding lowest AL AL ​​= I (②), or may be allowed from the lowest to the highest AL is continuously assigned the range of AL (③).

[0153] [表5] [0153] [Table 5]

[ [

Figure CN107733628AD00191

[0155] 每个AL的候选的数目可以通过RRC信令等传送给UE。 [0155] the number of candidates per AL may be transmitted to the UE through RRC signaling or the like. 也就是说,当配置EPDCCH集合时,eNB不仅可以配置N,而且可以配置每个AL的候选的数目。 That is, when configuring EPDCCH set, the eNB may be configured not only N, and the number of candidates can be configured per AL. 例如,当配置一个EPDCCH集合时,BD尝试次数可以与AL= {1,2,4,8}中的每一个相关地被设置为(BD的#) = {6,6,2,2}。 For example, when configuring a set EPDCCH, attempts may be the BD AL = {1,2,4,8} Each association is set (BD's #) = {6,6,2,2}. 为了减小信令开销,(BD的#)的可配置的组合的数目被预置为有限的数目,并且可以仅由对应的索引来配置。 In order to reduce the signaling overhead, the number (BD # a) may be pre-configured to be a combination of a limited number, and may be configured only by a corresponding index.

[0156] [表6] [0156] [Table 6]

Figure CN107733628AD00192

Τ〇Ϊ58Ϊ~对于本领域技术人员显而易见的是,在上述实施方式中描述的术语“AL”仅是示例性的,并且可以通过预定的规则或信令被设置为另一个值。 ~ Τ〇Ϊ58Ϊ apparent to the skilled person that the term described in the above described embodiment "AL" are merely exemplary, and may be set to another value by a predetermined rule or signaling. 同样地,与特定AL相互配合的(或分配给该特定AL的)BD尝试次数可以被指派一个不同的值(通过预定的规则或信令)。 Likewise, the specific AL cooperating (or assigned to the particular of AL) the BD attempts may be assigned a different value (a predetermined rule or through signaling). 例如,与该不同的值相关地,与AL= {1,2,4,8}中的每一个关联的BD尝试的次数可以被分别配置为{6,6,2,2}。 For example, the number, and the AL in relation to different values ​​associated with each of {1,2,4,8} = a BD attempts may be individually configured as {6,6,2,2}.

[0159] 在这种情况下,可以直接或间接地执行以下情况的异常处理:在该情况中,包含在配置的EPDCCH集合中的ECCE的数目(该配置的EPDCCH集合内的ECCE的#)小于特定AL。 [0159] In this case, it may be performed directly or indirectly exception handling the following conditions: In this case, the number of EPDCCH set of configurations of the ECCE (ECCE # within the set of the configured EPDCCH) comprises less than specific AL. 在使用直接方案的情况下,eNB选择适当的方案并重新分散候选的数目,以便执行UE的重新配置,或者eNB可以向UE传送与新的组合对应的索引。 In the case of direct scheme, and selection of appropriate program eNB redispersed number of candidates, so as to perform the reconfiguration of the UE, or eNB transmits to the UE may correspond to the new combination of the index.

[0160] 在使用间接方案的情况下,如果发生异常,则UE可以根据预定的规则来执行异常处理。 [0160] In the case of indirect scheme, if an exception occurs, the UE may perform abnormality processing according to a predetermined rule. 例如,假定eNB与UE之间的异常处理事件发生并且方案①允许被使用,则UE对于不被支持的AL不执行盲解码(BD),并且满足没有变化的其余AL的初始配置。 For example, assume that the processing exception event occurs between the eNB and the UE is allowed to use and embodiment ①, the initial configuration is not supported for AL does not perform blind decoding (the BD), and satisfies the remaining AL UE is not changed.

[0161] 在配置的EPDCCH集合中的ECCE的数目(该配置的EPDCCH集合内的ECCE的#)小于特定AL的情况,如前面所述地会受到N值的影响,而且在每PRB对的ECCE的数目(ECCE/PRB对的#)被改变或应该支持的的AL被改变时,可能出现上述情况。 ECCE EPDCCH number in the set configuration of [0161] (the ECCE # EPDCCH set in this configuration) is less than the specific case of AL as previously described to be affected by the value of N, and each PRB pair ECCE when the number (ECCE / PRB pairs #) is changed or should be changed to support the AL, the above situation may occur.

[0162] 根据其中包含在配置的EPDCCH集合中的ECCE的数目(该配置的EPDCCH集合内的ECCE的#)被改变为与相同的N相关的另一个数目的一个示例,诸如特殊子帧这样的特定类型子帧中的每PRB对的ECCE的数目(ECCE/PRB对的#)可以减小到另一个子帧的I/k。 [0162] The number contains the EPDCCH set configuration in the ECCE (ECCE # within the configuration of the set of EPDCCH) is changed to the same number N of another example of a related, such as the special subframe the number of a particular type subframe of each PRB pair of ECCE (ECCE / PRB pairs #) can be reduced to the other sub-frame I / k. 在这种情况下,如果N被设置为相同的值,则包含在该配置的EroCCH集合中的ECCE的数目“(该配置的EPDCCH集合内的ECCE的#) (=N个PRB对内的ECCE的#)”可以减小到Ι/k。 In this case, if N is set to the same value, the number of ECCE EroCCH set in this configuration contains "(the ECCE # EPDCCH set in this configuration) (= N PRB-pair ECCE the #) "can be reduced to Ι / k. 在另一个示例中, AL可以被改变为另一个且CSI-RS信号可以被分配给相应的子帧,并且每个可用的PRB对的RE数目(RE/PRB对的#)减小到Ι/m。 In another example, AL may be changed to another signal and the CSI-RS can be allocated to a corresponding subframe, and the number of each available PRB pairs RE (RE / PRB pairs #) is reduced to Ι / m. 在这种情况下,被支持的AL增加m倍,并且其详细描述被概括如下。 In this case, AL supported by m times, and a detailed description thereof is summarized below.

[0163] N个PRB对内的彡域OAL会在以下情况1)、2)和3)中发生。 [0163] N PRB-pair San OAL domain occurs in the following cases 1), 2) and 3).

[0164] 1)减小可以针对N增加来实现N配置 [0164] 1) reducing the N configuration may be realized for N is increased

[0165] 2) ECCE/PRB对的#减小 [0165] 2) ECCE / PRB pairs # reduced

[0166] 3) AL增加 [0166] 3) AL increased

[0167] 第一种情况(1)和用于分配在第一情况(1)中使用的BD尝试次数的方法已经被公开。 [0167] The first case (1) and a method of dispensing attempts BD used in the first case (1) has been disclosed for. 作为第二种情况⑵的一个示例,如果在N = 2时决定“ECCE/PRB对的# = 4”,则这意味着AL可以被指派最大值8,如由AL = 8表示的。 ⑵ As one example of the second case, if N = 2 in decision "ECCE / PRB pairs # = 4", this means that a maximum AL 8 may be assigned, as indicated by the AL = 8. 然而,如果“ECCE/PRB对的#”被改变为2 (ECCE/ PRB对的# = 2),则AL可以被指派最大值4,如由AL = 4表示的。 However, if the "ECCE / PRB pairs #" is changed to 2 (ECCE / PRB pairs # = 2), the AL may be assigned a maximum value 4, as represented by the AL = 4. 作为第三种情况(3)的一个示例,当(RE/PRB对的#)减小到104或更小,则可能出现另一种情况,其中,被支持的AL可以从{1,2,4,8}改变为{2,4,8,16}。 As a third case (3) is one example, when the (RE / PRB pairs #) is reduced to 104 or less, it may be another case occurs where the AL is supported from {1,2, {4,8} was changed to 2,4,8,16}. 如果每PRB对可用的RE的数目小于104,则可能难以仅使用一个ECCE来发送DCI净荷。 If each of the available PRB RE number is less than 104, it may be difficult to transmit a DCI payload ECCE use only. 例如,可以由每PRB对4个ECCE来配置具有正常CP的正常子帧。 For example, it is possible to configure the four ECCE normal subframe with a normal CP by each PRB. 在这种情况下,如果每PRB对可用的RE的数目小于104,则在每个ECCE中会包含26个或更少个RE, 使得它可能难执行DCI加载。 In this case, if each of the available PRB RE number is less than 104, then in each ECCE will contain 26 or fewer RE, such that it may be difficult to perform DCI loading. 因此,将最小AL增加一个梯度并且在EPDCCH中包含更多的ECCE,使得能够发送DCI。 Thus, a minimum increase gradient and AL contains more ECCE in the EPDCCH, making it possible to send DCI. 在这种情况下,如果N = 2并且给出“ECCE/PRB对的# = 4”,则可能无法配置“AL=16”。 In this case, if N = 2 and given "ECCE / PRB pairs # = 4", may not be disposed "AL = 16".

[0168] 即使在第二种情况2)和第三种情况3)下,如果以与在第一种情况1)相同的方式出现不被支持的AL,则可以使用这三种方法(①、②和③)中的任一种方法来将分配给相应AL 的BD尝试的数目(S卩,EPDCCH候选的数目)分配给另一个AL。 [0168] Even in) the second case 2) 3 and the third case, if the same manner as occurs in a first case) is not supported AL, three methods can be used (①, number (S Jie, number of EPDCCH candidates) any of the methods ② and ③) are to be assigned to the respective BD AL attempt assigned to another AL.

[0169] 如有必要,可以将不同的值指派给AL。 [0169] If necessary, different values ​​are assigned to AL. 例如,AL可以仅在集中发送的情况下被限制为4或更小(使得所有候选都能够被配置在一个PRB对中)。 For example, AL can be restricted only in the case of centralized transmission is 4 or less (such that all candidates can be configured in one PRB pair). 如上所述,如果仅支持具有比预先配置的AL组合更小的范围的AL,则可以使用上述方法(①、②和③)中的任一种方法从针对预先配置的AL组合的BD尝试的次数导出并决定针对每个AL的BD尝试的次数。 As described above, if only the support AL AL ​​composition having less than a pre-configured range, you can use any of the methods described above (①, ② and ③) are attempts for AL from the BD composition is preconfigured the number of export and determine the number of attempts for each BD AL's.

[0170] 针对多个EPDCCH集合的BD候选分配 [0170] BD allocation for a plurality of candidate sets of EPDCCH

[0171] 另一方面,UE可以被配置为至少两个EPDCCH集合。 [0171] On the other hand, UE may be configured to set at least two EPDCCH. 在这种情况下,可以根据每个EPDCCH集合对BD候选进行分类,并且分配给每个EPDCCH的可用的AL的候选的数目可以通过网络来配置,或者可以由隐式规则来决定。 AL number of candidates available in this case, BD can be classified according to the candidate set for each EPDCCH, and assigned to each EPDCCH may be configured by the network, or may be determined by implicit rules. 然而,BD候选的总数需要保持在与传统水平相似的水平。 However, the total number of BD candidate needs to be kept at levels similar to traditional levels.

[0172] 为了根据隐式规则来分配BD候选的数目,有必要设计适用于可配置的EPDCCH集合的数目的预定规则、发送(Tx)模式和可用的AL组合。 [0172] In order to be allocated according to the number of candidates BD implicit rules, it is necessary to design suitable for a configurable number of EPDCCH set of predetermined rules, transmit (Tx) mode and AL available combinations. 例如,可以配置两个EPDCCH集合的最大值,并且AL可以考虑其中每个EPDCCH集合都能够支持{1,2,4,8}的示例性情况。 For example, the maximum value may be configured EPDCCH sets of two, and wherein each may be considered AL EPDCCH set {1,2,4,8} can support an exemplary case. 在这种情况下,BD候选的数目可以被决定为如在以下表7中所示的。 In this case, the number of candidates may be determined BD are as shown in Table 7 below.

[0173] [表7] [0173] [Table 7]

Figure CN107733628AD00211

[0175] 如果特定集合不能支持所有的AL,则不被支持的AL的BD性能可以被独立分散给每个集合的另一个AL,或者可以不执行针对该相应AL的BD。 [0175] If a particular set does not support all of the AL, AL is not supported and the performance of the BD may be distributed to another AL independently each set, or may not be performed for the respective AL, BD.

[0176] 在另一种方法中,每个AL的BD候选的数目可以恒定保持在整个集合内。 [0176] In another method, the number of candidates of each BD AL may be kept constant throughout the set. 如果在特定集合中不支持所有的AL并且剩余的集合支持相应的AL,则不被支持的AL的BD候选可以由所述剩余的集合支持。 If not all of the AL in a particular set and the remaining set support the corresponding AL, AL is not supported BD candidates may be supported by the rest of the set. 如果即使其它的集合不支持该相应的AL,则可以在同一集合内实现BD候选的重新分配。 Even if the other set does not support the corresponding AL, BD redistribution can be achieved in the same candidate set. 在这种情况下,另一个集合可以包括传统的PDCCH。 In this case, the other set may include a conventional PDCCH. 在(RE/PRB对的#〈 Xthresh)的情况下,如果一个可支持的AL被改变为{2,4,8,16}并且集合1的PRB对的数目(NI) 被设置为2,则无法在该相应的集合中构造“AL= 16”,两个候选能够被分配给集合2的“AL = 16”。 Number (NI) in the case of (RE / PRB pairs # <Xthresh) if a supportable AL is changed to the set {2,4,8,16} and the PRB 1 is set to 2, then not configured "AL = 16" in the corresponding set, two candidate set can be allocated to the 2 "AL = 16". 如果集合2的PRB对的数目(N2)不足以支持这两个候选(例如,N2 = 4),贝Ij相应的BD候选可以被分配给AL = 2等。 The number (N2) if the set of the PRB 2 is sufficient to support these two candidates (e.g., N2 = 4), the corresponding BD Ij shell may be allocated to the candidate AL = 2 and the like.

[0177] [表8] [0177] [Table 8]

Figure CN107733628AD00212

[0179][表9] [0179] [Table 9]

Figure CN107733628AD00221

Τ0Ϊ8ΪΪ~另一方面,限定了具有预定级别N的主(primary)集合,并且可以在可配置的范围内限定具有对N的特殊限制的辅(secondary)集合。 Τ0Ϊ8ΪΪ ~ On the other hand, defines a primary (Primary) having a set of N predetermined level, and may define a particular limitation in the range of N configurable secondary (Secondary) collection. 预定值被指派给该主集合的级别(N),并且在任意的配置中都可以保证能够支持最大AL的最小N值。 Value is assigned to the predetermined level (N) of the main set, and any configuration can ensure that the minimum value of N can support a maximum of AL. 例如,假定给出了“ECCE/PRB对的# = 4”和“最大AL=16”,或者假定给出了“ECCE/PRB对的# = 2”和“最大AL = 8”,如果给出了N的最大值,贝Ij主集合的最小N值可以被设置为4。 For example, assume that a given "ECCE / PRB pairs # = 4", and "Maximum AL = 16", or given assuming "ECCE / PRB pairs # = 2" and "Max AL = 8", if given N is the maximum value, the minimum value of N Ij shell main set may be set to 4. 在这种情况下,如果无法向AL候选的最大数目(被映射到相同ECCE的候选出现)指派预定的数或更大的数,则有必要考虑候选的最大数目来配置N值。 In this case, if not to the maximum number of candidates AL (mapped to the same candidate appears ECCE) number assigned to a predetermined number or more, it is necessary to consider the maximum number of candidates to configure the N value. 例如,如果给出N=4,则可以对于AL = 8仅配置一个候选。 For example, given if N = 4, may be disposed AL = 8 for only one candidate. 因此,如果分配了AL = S的两个或更多个候选,则主集合的N可以被指派8或更大。 Thus, if the S AL = two or more candidate allocation, N of the main set may be assigned to 8 or more.

[0182] 由于主集合保证了最大AL,AL被分类为高的AL“高”和低的AL“低”,因此可以将包含在“高”中的AL指派给主集合,并且可以将包含在“低”中的AL指派给辅集合。 [0182] Since the main collection ensures maximum AL, AL is classified as a high AL "high" and low AL "low", and therefore can be included AL "high" is assigned to a master set, and may be included in the "low" is assigned to the secondary collection AL. 作为用于区分“高”和“低”的绝对方法,任意的AL (例如,AL = 4)或更高的AL可以被配置为“高”。 As a method for the absolute distinction between "high" and "low", an arbitrary AL (e.g., AL = 4) or later may be configured to AL "high." 另选地, 也可以考虑可配置的AL的相对级别来决定上述方法。 Alternatively, the opposite is also conceivable level AL may be configured to determine the above-described method. 例如,在支持“AL = 1,2,4,8”的情况下,AL = 1,2可以被识别为“低”并且AL = 4,8可以被识别为“高”。 For example, in the case of supporting "AL = 1,2,4,8" to, AL = 1,2 may be identified as "low" and AL = 4,8 may be identified as a "high." 如果(RE/PRB对的#〈Xthresh) 被改变并且AL也被改变为{2,4,8,16},则AL = 2,4可以被识别为“低”并且AL = 8,16可以被识别为“高”。 If (RE / PRB pairs # <Xthresh) and AL is changed is also changed to {2,4,8,16}, the AL = 2,4 may be identified as "low" and may be AL = 8,16 identified as "high." 在使用上述方法的情况下,BD候选被分配如下。 In the case of using the above method, BD candidates are assigned as follows.

[0183] [表10] [0183] [Table 10]

Figure CN107733628AD00222

[0185] 对于辅集合的倩况,假定由于可利用的资源不足而无法按配置的N值配置特定AL, 则相应的AL候选可以仅被分配给主集合。 [0185] For the secondary set of conditions Qian, assumed due to lack of available resources can not be configured by a particular configuration AL N values, the corresponding AL candidates may only be allocated to the main set. 例如,假定辅集合被配置为N2 = 2并且给出了(RE/ PRB对的#〈Xthresh),如果AL从{1,2,4,8}被改变为{2,4,8,16},则无法在辅集合内配置具有AL=16的候选。 For example, assume that secondary collection is configured to N2 = 2 and gives (RE / PRB pairs # <Xthresh), if AL is changed from {1,2,4,8} to {2,4,8,16} , can not be disposed in the secondary candidate set having the AL = 16. 在这种情况下,对应于AL=16的候选可以被全部分配给主集合。 In this case, the candidate corresponding to the AL = 16 may be assigned to all of the master set.

[0186] [表11] [0186] [Table 11]

Figure CN107733628AD00223

[0188] 上述的概念也能够适用于以下的示例性情况(参见表10):其中AL被分类为高的AL “高”和低的AL“低”,使得仅低的AL能够被分配。 [0188] The concept can be applied to the following exemplary cases (see Table 10): wherein AL AL ​​is classified as high "high" and AL low "low", so that only a low AL can be allocated. 虽然仅低的AL被指派,但是过低的值可以被指派给N,或者改变子帧类型,使得由于“ECCE/PRB对的#”的减小而对于相同的AL需要更高的N值。 While only low AL is assigned, but the low value may be assigned to N, or to change the type of the subframe, so that due to the reduced "# ECCE / PRB right" and requires a higher value for the same N AL. (同样,由于(RE/PRB对的#的减小),AL增大使得对于相同的DCI传输需要更高的N 值)。 (Also, since the (RE / PRB # reduction pair), so that for the same increase AL DCI transmission requires higher values ​​of N).

[0189] 隐含规则适用于上述方案。 [0189] implicit rules applicable to the above scheme. 假定预先限定了每个EroCCH集合的AL和与每个AL对应BD候选的数目,当分配任意的EPDCCH集合时,可以使用上述方案。 Assuming each AL EroCCH predefined set of candidates and the number corresponding to each BD AL, when dispensing any EPDCCH set, the above scheme may be used. 在另一种方法中,网络针对每个EPDCCH集合分配BD候选的数目,并且可以告知UE所分配的信息。 In another approach, a set of assigned network number for each candidate EPDCCH BD, and notification information can be allocated to the UE. 在这种情况下,该网络可以使用相同的方法来向每个集合的AL分配BD候选。 In this case, the network can use the same method for allocating to each BD AL candidate set.

[0190] 如果网络配置BD候选的数目,则可以在关于BD候选的总数的限制(具有与在传统技术中相似的级别)下考虑具有完全灵活性的任意组合。 [0190] If the number of network configuration BD candidates, can limit the total number of candidates for a BD (has a similar level in the conventional art) have any combination of full consideration of flexibility. 在这种情况下,可能出现不可忽略的开销。 In this case, a non-negligible overhead may occur. 因此,可以根据隐式规则来计算BD候选的数目,并且能够根据该隐式规则来决定其中由于子帧类型的改变而不能在相同N值下配置特定AL的异常情形。 Thus, the candidate may be calculated according to the number of BD implicit rules, and can be determined since the subframe type wherein changes of an abnormal situation can not be configured in the same AL-specific N value according to the implicit rule.

[0191] 已详细公开了其中包含在配置的EroCCH集合中的ECCE的数目小于AL的异常处理。 [0191] have been disclosed in detail wherein exception handling is included in the number set configuration in EroCCH ECCE is less than the AL. 也就是说,当BD候选的数目被分配给每个AL时,能够由特定AL配置的候选的数目可能是有限的。 That is, when the number of candidates BD is assigned to each AL, can be configured by a specific number of AL candidates may be limited. 如上所述,如果无法构造出和在相应AL中的BD候选的预定数目一样多的候选,则剩余的BD候选的数目被分配给另一个AL。 Number described above, if a predetermined number and can not be configured in the respective AL BD candidate in as many candidates, the remaining candidate is allocated to the BD AL another. 在这种情况下,剩余的候选的数目可以按以下方式被重新分配:剩余的BD候选可以从来自相应的AL的这些AL或更少AL当中的最大AL开始顺序填充各个AL。 In this case, the remaining number of candidates may be reallocated as follows: BD remaining candidates can be filled from the respective AL AL ​​AL ​​from the respective maximum or less among AL AL ​​sequentially. 也就是说,在这些BD候选被分配给来自相应的AL的这些AL或更少AL当中的最大AL之后获得的多余的BD候选的数目可以首先被分配给其次高的AL,使得该BD候选分配方案能够如上所述地重复。 That is, the number of redundant candidates after the BD BD are assigned to the candidates from the respective AL AL ​​AL ​​AL ​​maximum or less can be obtained among the first to be assigned the next highest AL, so that the allocation candidate BD scheme can be repeated as described above. 上述处理可以被执行到最小的AL的范围,或者可以重复地执行到预定的最小AL。 The above-described process may be performed to the smallest AL range, or may be repeatedly performed a predetermined minimum AL. 如果在完成向相应集合内的最小AL的分配之后存在剩余的BD候选,则该相应的BD候选可以不再被分配,或者可以被转移到另一个集合。 If there are remaining candidates after the completion of a BD is allocated to a minimum within the respective AL set, the corresponding BD candidates may no longer be assigned, or may be transferred to another collection.

[0192] 如上所述,可以使用用于优先向高的AL进行BD候选分配的操作,以保证用于使用该高的AL来发送DCI的情况的候选。 Candidate Operation [0192] As described above, may be used to prioritize candidate allocations BD AL high to ensure a high use of the AL to send the case where the DCI. 也就是说,假定用于构造相对高的AL的操作受到构造EPDCCH的ECCE的数目的限制,则相应的候选被重新分配给顺序上的下一个AL (S卩,其次高的AL),使得其具有与相对低的AL的公平性。 That is, assuming for constructing relatively high number of AL of the operation by the configuration of ECCE EPDCCH limit, the corresponding candidate is reassigned to the next sequential AL (S Jie, the next highest AL), such that has a relatively low and fairness of the AL. 例如,如果在恶劣信道环境中需要高的AL,则用于向具有足够数目的候选的低的AL分配额外的候选的操作可能是没有意义的。 For example, if a bad channel environment requires a high AL, it is used to allocate a low AL candidate having a sufficient number of additional candidates operation may not be meaningful.

[0193] 例如,如果在给定情况下提供一个基准(AL = L),则假定{6,6,2,2} BD候选能够被分别分配给AL = L,2L,4L,8L,使得上述实施方式基于上述假定。 [0193] For example, if a reference (AL = L) in a given case, it is assumed that {6,6,2,2} BD candidate can be allocated to each AL = L, 2L, 4L, 8L, so that the above-described embodiment is based on the above assumption. 在这种情况下,假定给出了8个PRB对,可以产生总共32个ECCE并且假定一个基准(L = 4),并且还假定由于过量资源的消耗而不存在AL = 32。 In this case, it is assumed that given eight PRB pairs can produce a total of 32 reference ECCE and assuming that a (L = 4), and further assumed that since excess consumption of resources without the AL = 32. 与8L对应的AL = 32的两个候选可以被分配给另一个AL,并可以尝试执行向低于“AL = 32”的AL当中的最高的△1^蚍=16)的分配,并且存在于1=16”中的两个候选消耗所有的32个ECCE,使得无法向AL=16分配额外的候选。因此,尝试向与下一个AL对应的AL = 8的分配,并且32个ECCE能够获得总共四个“AL = 8”候选,使得6个分配候选当中的两个候选保持未使用。因此,总共四个多余的候选可以尝试执行向AL = 4的分配。在AL = S的情况下可以存在总共8个候选,使得两个多余的候选被分配给AL = 4并且最后的两个多余的候选被分配给AL = 2。结果,{0,2,8,4,2}个候选被分别分配给AL = 1,2,4,8,16。 8L and two corresponding candidate AL = 32 may be assigned to another AL, and can attempt to perform below maximum △ "AL = 32" among the AL 1 = 16 ^ Pi) distribution, and present in 1 = 16 "two candidates consume all ECCE 32, such that the AL = 16 can not allocate additional candidate. Thus, attempts to allocate the next 8 corresponding AL and AL =, and can be obtained in total 32 ECCE four "AL = 8" candidate, so that the allocation candidate from among the six candidate two remain unused. Accordingly, a total of four redundant candidates can try to allocate AL = 4 may be present in AL = S, where a total of eight candidates, so that the two redundant candidates is assigned to AL = 4 and the last two redundant candidates is assigned to AL = 2. As a result, {0,2,8,4,2} candidates are assigned to AL = 1,2,4,8,16.

[0194] 下面的表12示出了响应于每种情形来分配BS候选的示例性情况。 [0194] The following Table 12 shows an exemplary case in response to each case allocated to the BS candidates. 在这种情况下, 如果基准级别被设置为4,则假定没有ePDCCH集合被配置为两个PRB对,并且还假定在“基准L = 4”的情况下不存在AL = 1。 In this case, if the reference level is set to 4, it is assumed that no set is configured as two ePDCCH PRB pairs, and further assuming AL = 1 does not exist in the case of a "reference L = 4" in.

[0195][表12] [0195] [Table 12]

Figure CN107733628AD00241

[0197] 此外,下表示出了基于应用于上述实施方式的基准将BD候选分配给两个EPDCCH集合的示例性情况。 [0197] In addition, the table shows an exemplary case where a set of two EPDCCH BD candidate allocation based on reference will be applied to the above-described embodiment. 在这种情况下,Nl表示第一EPDCCH集合1中的PRB对的数目,并且N2表示第二EPDCCH集合2中的PRB对的数目。 In this case, Nl represents the number 1 PRB pair in the first set of EPDCCH, and N2 represents the number of a second set of EPDCCH 2 PRB pairs. BW表示系统带宽,并且MinAL指示能够在特定子帧中被发送的最小AL。 BW denotes a system bandwidth, and indicating the minimum MinAL AL ​​can be transmitted in a specific subframe. 可以在其中每PRB对可用的RE的数目是如以上描述的相对低的数目的情况下改变MinAL。 Wherein the number may be changed in each MinAL the available PRB RE is as described above under a relatively low number of cases. 例如,如果每PRB对可用的RE的数目小于104,贝IjMinAL可以被改变为2。 For example, if each of the available PRB RE number is less than 104, it may be changed to IjMinAL shell 2. 用于在下表中使用的基准L被假定如下。 Reference L for use in the following table is assumed as follows.

[0198] 基准L = 4 [0198] reference L = 4

[0199] -MinAL是2 (MinAL = 2)并且在BW大于25*RB的条件下使用DCI格式2系列的情况 [0199] -MinAL is 2 (MinAL = 2) and the case where the DCI format used at greater than 25 * RB BW series 2

[0200] 基准L = 2 [0200] reference L = 2

[0201] -MinAL是2 (MinAL = 2)并且在BW大于25*RB的条件下使用DCI格式0/1系列的情况 [0201] -MinAL is 2 (MinAL = 2) and the case where the DCI format used at greater than 25 * RB BW series 0/1

[0202] -MinAL是I (MinAL=I)并且在BW大于25*RB的条件下使用DCI格式2系列的情况 [0202] -MinAL is I (MinAL = I) and the DCI format 2 series at the BW is larger than the case where 25 * RB

[0203] -MinAL是2 (MinAL = 2)并且在BW大于25*RB的条件下使用DCI格式0/1系列的情况 [0203] -MinAL is 2 (MinAL = 2) and the case where the DCI format used at greater than 25 * RB BW series 0/1

[0204] -MinAL是2 (MinAL = 2)并且在BW大于25*RB的条件下使用DCI格式2系列的情况 [0204] -MinAL is 2 (MinAL = 2) and the case where the DCI format used at greater than 25 * RB BW series 2

[0205] 基准L=I [0205] reference L = I

[0206] 在除上述情况之外的其余情况下: [0206] In the remaining cases in addition to the above:

[0207] 在这种情况下,假定BD候选被等同地分配给各个EPDCCH集合。 [0207] In this case, assuming BD candidates are equally allocated to each EPDCCH set. 也就是说,通常,{3, 3,1,1}个候选被分别分配给AL = L,2L,4L,8L。 That is, generally, {3, 3, 1} are assigned to the candidate AL = L, 2L, 4L, 8L.

[0208] [表13] [0208] [Table 13]

Figure CN107733628AD00251

[0210] 基准级别L不总是被限制为在上述示例中使用的值,并且不总是被固定为上表中使用的值。 [0210] L reference level is not always limited to the values ​​used in the above example, and is not always fixed to a value in the table is used. 也就是说,L也可以被设置为除了1、2和4以外其余的值中的何一个。 That is, L can also be set to 1, 2, and 4 in addition to any one of the remaining values. 额外地考虑EPDCCH集中或分散的方案和其它EPDCCH特性,使得也可以在与在上表中相同的条件下考虑其它的L值。 Additionally consider programs and other characteristics EPDCCH EPDCCH centralized or distributed, may also consider other such that L values ​​under the same conditions as in the above table.

[0211] 另一方面,当根据实施方式通过特定阈值与其它值之间的比较来实现特定配置时,对于本领域技术人员显而易见的是,术语(“以下)”或“以上”)包括特定阈值,或者包括特定阈值的术语(“小于”或“大于”)可以包括该特定阈值或可以不包括该特定阈值。 [0211] On the other hand, when the particular configuration is achieved by a comparison between the certain threshold value in accordance with other embodiments apparent to the skilled person that the term ( "hereinafter)", or "more") comprising a certain threshold or the term including a specific threshold ( "less than" or "greater than") the particular threshold may include or may not include that particular threshold.

[0212]同时,针对每个EPDCCH集合的基准级别L可以被不同地配置。 [0212] At the same time, it may be configured differently for each of the reference level L EPDCCH set. 例如,可以根据与在DPS中相同的场景来从不同的TP传送每个EPDCCH集合。 For example, the TP may be set different from each EPDCCH transmission according to the same scene in the DPS. 在这种情况下,如果TPl使用2端口-CRS并且TP2使用4端口-CRS,则从单个PRB对中的TPl发送的EPDCCH集合1中的可用RE的数目可以大于Xthresh,并且从TP2发送的EroCCH集合2中的可用RE的数目可以小于Xthresh。 In this case, if the TPl and TP2 using 2-port-CRS-CRS 4-port, from the single PRB pair EPDCCH TPl set the number of available transmission in the RE may be greater than Xthresh is 1, and transmitted from TP2 EroCCH RE available number of sets may be less than 2 Xthresh. 因此,用于在EroCCH集合1中使用的基准级别L可以被指派Ll = I,并且用于在EPDCCH集合2中使用的基准级别L可以被指派L2 = 2。 Thus, the reference level L is set to 1 may be used in EroCCH assigned Ll = I, and for use in the EPDCCH set reference level L 2 may be assigned L2 = 2.

[0213] 如上所述,如果不同的基准级别(L)被指派给各个EPDCCH集合,则可以使用用于将BD候选拆分到各个集合的以下两个方案。 [0213] As described above, if different reference levels (L) is assigned to each EPDCCH set, the BD may be used to split the following two schemes each candidate set.

[0214] 第一步骤:假定各个EPDCCH集合都具有相同的基准级别L并且拆分BD候选,则执行对该BD候选的拆分。 [0214] First Step: EPDCCH assumed that each set has the same reference level L and the candidate split BD, BD splits the candidate is executed.

[0215] 也就是说,假定给出了EPDCCH集合1的LI = 1和EPDCCH集合2的L2 = 2,则假定L= 1 被指派给两个集合或者能够基于L = 2的假定来拆分该BD候选。 [0215] That is, assuming a given EPDCCH set of LI = 1 and L2 of EPDCCH set 2 = 2, L = 1 is assumed to be assigned to the two sets or can be based on the L = 2 is assumed to split the BD candidate. 例如,如果NI = 4并且LI = I 被指派用于集合1,并且如果N2 = 8并且L2 = 2被指派用于集合2,则BD分配能够被实现如下。 For example, if NI = 4 and LI = I 1 are assigned for collection, and if N2 = 8 and L2 = 2 is assigned for set 2, the BD distribution can be realized as follows.

[0216] -集合1:如果给出1^=1和附=4,则能够决定用于六1^={1,2,4,8,16}的出0候选的# ={3,3,1,1,0}) 〇 [0216] - Set 1: Given a 1 = 1 ^ = 4 and the attachment, can be determined using a 6-1 ^ = {1,2,4,8,16} of the candidate # 0 = {3,3 , 1,1,0}) square

[0217] -集合2:如果给出1^=1和吧=8,则能够决定用于六1^={1,2,4,8,16}的出0候选的# ={3,3,1,1,0}) 〇 [0217] - Set 2: Given a 1 = 1 ^ = 8 and it is possible to determine for six ^ 1 = {1,2,4,8,16} of the candidate # 0 = {3,3 , 1,1,0}) square

[0218] 第二步骤:可以校正不同的L值。 [0218] Second Step: corrects for different values ​​of L. 在第一步骤中,假定按L = Ll (S卩,如果假定在第一个步骤中在Ll和L2彼此不同的条件下将基准级别L设置为LI)执行BD分配,则有必要协调具有L2的EPDCCH集合(S卩,EPDCCH集合2)的BD候选的AL。 In a first step, it is assumed by L = Ll (S Jie, if in a first step in the Ll and L2 mutually different conditions assumed at the reference level L is set to LI) executing a BD allocation, it is necessary to have coordinated L2 the set of candidate EPDCCH AL BD (S Jie, EPDCCH set 2). 如果在协调完成之后无法支持被分配给最大AL的所有BD候选,则可以重新分配不能够支持其它AL的多余的BD候选。 If you can not support all BD candidate is assigned to the maximum AL after coordination is complete, you can re-allocation can not support a candidate other AL excess of BD. 该重分配方案可以使用上述方案中的任一个。 The re-allocation scheme may be used in any of the above-described embodiment. 可以通过对集合2的BD分配的协调来获得下面的集合1和2〇 Can be obtained by following the coordination of BD assignment set 1 and set 2 2〇

[0219] -集合1:如果给出L=I和Nl = 4,则能够决定用于△1^={1,2,4,8,16}的出0候选的# ={3,3,1,1,0}) 〇 [0219] - Set 1: If the given L = I and Nl = 4, it is possible to determine △ 1 ^ = {1,2,4,8,16} for the candidate # 0 = {3,3, 1,1,0}) square

[0220] -集合2:如果给出L2 = 2和N2 = 8,则能够决定用于AL= {1,2,4,8,16}的⑽候选的#={0,3,3,1,1}) 〇 [0220] - Set 2: If the given L2 of = 2 and N2 = 8, it is possible to determine for the AL = {1,2,4,8,16} ⑽ candidate # = {0,3,3,1 , 1}) square

[0221] 在这种情况下,关于EPDCCH集合中的哪一个将被用作第一步骤的基准L的信息和关于EPDCCH集合中的哪一个将在第二步骤中被校正的信息不是很重要。 L and reference information which is to be corrected in a second step, the information about the set of EPDCCH [0221] In this case, on which a EPDCCH set to be used as a first step is not critical. 也就是说,为了方便描述,虽然在EPDCCH集合1和L= 1的基础上执行第一步骤,并且在第二步骤中在EPDCCH集合2和L2 = 2的基础上执行校正,但是本发明的范围或精神不限于此。 That is, for convenience of description, although a first set of steps performed EPDCCH base 1 and L = 1, the set and in the second step L2 = 2 and performing the correction on the basis of the EPDCCH 2, but the scope of the invention or spirit is not limited thereto.

[0222] 例如,还可以在由服务小区发送的EPDCCH集合的基础上执行上述操作。 [0222] For example, the above-described operation may also be performed on the basis of EPDCCH transmitted by the serving cell set. 假定用集合1和Ll = 2来表示由服务小区发送的EPDCCH集合,并且用L2 = l来表示从其它的TP发送的EPDCCH集合2,则在基准级别(L = 2)下执行第一步骤并且可以在第二步骤中协调EPDCCH集合2的BD分配。 1 and a set of assumed with Ll = 2 represented EPDCCH transmitted by the serving cell set and is represented by L2 = l EPDCCH transmitted from another TP set 2, then the reference level (L = 2) and the step of performing a first EPDCCH set may be coordinated BD 2 is allocated in the second step. 另选地,还可以在来自EPDCCH集合当中的最小L的基础上执行上述操作。 Alternatively, the above-described operation may also be performed in a minimum set of L basis from among the EPDCCH. 在这种情况下,在TP2处发送的EPDCCH集合2的基准级别(L2= 1)被用作第一步骤的基准以便假定LI = 1,并且能够在第二步骤中协调EPDCCH集合1的BD分配。 In this case, transmitted at TP2 EPDCCH set reference level 2 (L2 = 1) is used as a reference in order to assume a first step of LI = 1, and to coordinate the distribution BD EPDCCH set 1 in the second step .

[0223] 同时,如果BD候选被分配给两个或更多个EPDCCH集合,则与各个集合相关的不同数目的BD候选可以被分配给各个集合。 [0223] Meanwhile, if the candidate is allocated to the BD two or more EPDCCH set, each set is associated with a different number of candidates may be allocated to the BD respective sets. 例如,可以由N和L的函数来限定每集合候选的数目。 For example, the number may be defined by each set of candidate function of N and L. 例如,N/L被用作BD拆分的基准,以反映可用的RE的数目。 For example, N / L is used as a reference BD split, to reflect the number of available RE. 在这种情况下,如果不同的N值被指派给相同的L,则不同数目的BD可以被指派给各个集合。 In this case, if a different value of N is assigned to the same L, the BD different number may be assigned to each set. 如果不同的L值被指派给相同的N,则不同数目的BD可以被指派到各个集合。 If different values ​​are assigned to the same L of N, the number of different respective sets can be assigned to BD. 相反,尽管不同的N和L值被指派给各个集合,然而如果给出了相同的N/L值,则相同数目的BD可以被分配给各个集合。 In contrast, although different values ​​of N and L are assigned to each set, but if given the same N / L value, the same number can be assigned to each BD set.

[0224] 因此,作为一种用于在针对各个集合的BD拆分期间考虑N/L值的方法,用于各个集合的BD候选的数目可以与各个集合的N/L值成比例。 [0224] Accordingly, as a method for considering N / L values ​​for each set of split during BD, BD the number of candidates for each set may be the respective sets of N / L proportional. 在这种情况下,如果相同的N/L值在各个集合中得以实现,则BD候选可以被均匀地分散到各个集合。 In this case, if the same N / L in the respective set value is achieved, the BD candidates may be uniformly dispersed in the respective sets.

[0225] 例如,假定N1 = 4和Ll = I被指派用于集合1并且N2 = 8和L2 = 2被指派用于集合2, 则能够如上所述地分配BD候选。 [0225] For example, assuming that N1 = 4 and 2 are assigned Ll = I 1, and was assigned for a set of L2 = N2 = 8 and 2 for the set, it is possible to assign BD candidate as described above.

[0226] -集合1:如果给出Ll = I和Nl =4,则N1//L1 =4,并且能够决定用于AL={1,2,4,8, 16}的(BD候选的#={3,3,1,1,0})。 [0226] - Set 1: If the given Ll = I and Nl = 4, then N1 // L1 = 4, and can be determined for AL = {1,2,4,8, 16} is (BD candidates # = {3,3,1,1,0}).

[0227] -集合2:如果给出L2 = 2和N2 = 8,贝IJN2/L2 = 4,并且能够决定用于AL = {I,2,4,8, 16}的(BD候选的#={0,3,3,1,1})。 [0227] - Set 2: If the given L2 of = 2 and N2 = 8, shellfish IJN2 / L2 = 4, and can be determined for AL = {I, 2,4,8, 16} is (BD candidates # = {0,3,3,1,1}).

[0228] 也就是说,由于给出了用于集合1的N1/L1=4和用于集合2的N2/L2 = 4,因此集合1 和集合2可以具有相同数目的BD候选。 [0228] That is, since a given set of N2 1 N1 / L1 = 4 and a set of 2 / L2 = 4, and therefore may set 1 and set 2 have the same number of candidates BD. {3,3,1,1,0}被指派给EPDCCH集合1,并且{0,3,3,1, 1}通过BD候选分配的协调被指派给EPDCCH集合2。 {3,3,1,1,0} EPDCCH is assigned to set 1, and {0,3,3,1, 1} is assigned to the BD EPDCCH candidate set 2 assigned by the coordinator.

[0229] 例如,假定N1 = 4和Ll = I被指派用于集合1并且N2 = 8和L2 = l被指派用于集合2, 则能够如上所述地分配BD候选。 [0229] For example, assuming that N1 = 4 and Ll = I 1 is assigned for the collection and N2 = 8 and L2 = l is assigned for set 2, it is possible to assign BD candidate as described above. 在这种情况下,按N1/L1与N2/L2的比值(即,1:2的比值)来划分用于各个AL的BD候选的数目。 In this case, press / L1 ratios N1 and N2 / L2 (i.e., 1: 2 ratio) to divide each of the candidates for the number of AL of BD. 如果没有用代替整数的其它值来表示划分结果,则用循环(round)函数来处理该结果。 If there is no division result represented by another value instead of an integer, then the result function to deal with the cycle (round).

[0230] -集合1:如果给出Ll = I和Nl =4,则N1//L1 =4,并且能够决定用于AL={1,2,4,8, 16}的(BD候选的#={2,2,1,1,0})。 [0230] - Set 1: If the given Ll = I and Nl = 4, then N1 // L1 = 4, and can be determined for AL = {1,2,4,8, 16} is (BD candidates # = {2,2,1,1,0}).

[0231] -集合2:如果给出L2 = 1和N2 = 8,贝IJN2/L2 = 8,并且能够决定用于AL = {1,2,4,8, 16}的(BD候选的#={4,4,1,1,0})。 [0231] - Set 2: L2 = 1 is given, and if N2 = 8, shellfish IJN2 / L2 = 8, and can be determined for AL = {1,2,4,8, 16} is (BD candidates # = {4,4,1,1,0}).

[0232] 也就是说,假定给出了集合1的N1/L1 =4和集合2的N2/L2 = 8,给出了N1/L1:N2/L2 =1:2,则分配给该集合2的BD候选的数目可以是分配给该集合1的BD候选的数目的两倍。 [0232] That is, assuming a given set of N1 / L1 = 4 and N2 / L2 = 8 set 2, gives the N1 / L1: N2 / L2 = 1: 2, 2 is assigned to the set BD number may be twice the number of candidates in the set of candidate BD is assigned to 1.

[0233] 如果不仅对于考虑到来自两个步骤中的第一步骤的N/L来提供Nl =4和LI = 1的情况,而且对于在考虑到N/L来提供N2 = 8和L2 = 2的情况分配BD候选,则可以得到下列结果。 [0233] If not only to take into account N from the first step of a two step / L to provide Nl = 41 and LI = situation, but also for taking into account the N / L to provide N2 = 8 and L2 = 2 the BD allocated candidate, the following results can be obtained.

[0234] 第一步骤-假定L = L1 = L2=1被假定用于两个集合,则用于这两个集合的BD候选基于N/L被划分。 [0234] First step - assuming L = L1 = L2 = 1 is assumed for the two sets, the candidate set used for both BD is divided based on the N / L.

[0235] -集合1: LI = I,Nl =4,用于AL= {1,2,4,8,16}的BD候选的#= {2,2,1,1,0} [0235] - a set of 1: LI = I, Nl = 4, for AL = {1,2,4,8,16} a BD candidate # = {2,2,1,1,0}

[0236] -集合2: L2 = I,N2 = 8,用于AL ={1,2,4,8,16}的BD 候选的#={4,4,1,1,0} [0236] - a set of 2: L2 = I, N2 = 8, for AL = {1,2,4,8,16} a BD candidate # = {4,4,1,1,0}

[0237] 第二步骤-集合2的校正 [0237] The second step - the correction of a set of 2

[0238] -集合! [0238] - a collection! : LI = I,Nl =4,用于AL= {1,2,4,8,16}的BD候选的#= {2,2,1,1,0} : LI = I, Nl = 4, for AL = {1,2,4,8,16} a BD candidate # = {2,2,1,1,0}

[0239] -集合2: L2 = 2,N2 = 8,用于AL= {1,2,4,8,16}的BD候选的#= {0,4,4,1,1} [0239] - a set of 2: L2 = 2, N2 = 8, for AL = {1,2,4,8,16} a BD candidate # = {0,4,4,1,1}

[0240] 图12是被配置为实现本发明的示例性实施方式的发送装置10和接收装置20的框图。 [0240] FIG. 12 is a transmitting means configured to implement an exemplary embodiment of the embodiment 10 of the present invention and a block diagram of the receiving apparatus 20. 参照图12,发送装置10和接收装置20分别包括:射频(RF)单元13和23,其用于发送和接收携带信息、数据、信号和/或消息的无线电信号;存储器12和22,其用于存储与无线通信系统中的通信有关的信息;以及处理器11和21,其可操作地连接到RF单元13和23以及存储器12和22,并被配置为控制存储器12和22和/或RF单元13和23,以便执行本发明的上述实施方式中的至少一个。 Referring to FIG. 12, the transmitting apparatus 10 and receiving apparatus 20, respectively, comprising: a radio frequency (RF) unit 13 and 23 for carrying the transmitting and receiving information, data, signals and / or radio signals message; a memory 12 and 22, which was storing information on communication with a wireless communication system; and processor 11 and 21, which is operatively connected to the RF unit 13 and 23 and 22 and a memory 12, and configured to control the memory 12 and 22 and / or RF units 13 and 23, in order to perform the above-described embodiments of the present invention at least one.

[0241] 存储器12和22可以存储用于处理和控制处理器11和21的程序,并且可以临时存储输入/输出信息。 [0241] 12 and the memory 22 may store programs for processing and control processor 11 and 21, and may temporarily store input / output information. 存储器12和22可以被用作缓冲器。 22 and the memory 12 may be used as a buffer. 处理器11和21控制发送装置10或接收装置20中的各种模块的总体操作。 The processor 11 and the transmission 21 controls the overall operation of the receiving apparatus 10 or various modules in apparatus 20. 处理器11和21可以执行各种控制功能以实现本发明。 The processor 11 and 21 may perform various control functions to implement the present invention. 处理器11和21可以是控制器、微控制器、微处理器或微型计算机。 21 and processor 11 may be a controller, a microcontroller, a microprocessor or microcomputer. 可以由硬件、固件、软件或其组合来实现处理器11和21。 It may be a combination of hardware, firmware, software, or a processor 11 and 21 is achieved. 在硬件配置中,在处理器11和21中可以包括专用集成电路(ASIC)、 数字信号处理器(DSP)、数字信号处理装置(DSPD)、可编程逻辑器件(PLD)或现场可编程门阵列(FPGA)。 In a hardware configuration, the processors 11 and 21 may include an application specific integrated circuit (ASIC), a digital signal processor (DSP), digital signal processing devices (DSPDs), programmable logic devices (PLD) or a field programmable gate array (FPGA). 如果利用固件或软件来实现本发明,则固件或软件可以被配置为包括执行本发明的功能或操作的模块、步骤、功能等。 If using the firmware or software of the present invention, the firmware or software may be configured to include a module to perform the functions or operations of the present invention, steps, functions and the like. 配置为执行本发明的固件或软件可以被包括在处理器11和21中或存储在存储器12和22中,以便由处理器11和21驱动。 Configured to execute firmware or software may be included in the present invention, in order to drive the processor 21 and 11 or 21 and 12 and stored in the memory 22 by the processor 11.

[0242] 发送装置10的处理器11由处理器11或连接到该处理器11的调度器来进行调度,并且对待发送到外部的信号和/或数据进行编码和调制。 The processor 11 to schedule the scheduler by the processor 11 or processor 11 is connected to the [0242] transmitting apparatus 10, and the signal to be transmitted to the outside and / or data encoding and modulation. 经编码和调制的信号和/或数据被发送至RF单元13。 It is sent to the RF unit 13 and modulated coded signals and / or data. 例如,处理器11通过解复用、信道编码、加扰和调制来将待发送的数据流转换成K个层。 For example, the processor 11 by demultiplexing, channel coding, scrambling, and modulation of the data stream to be transmitted into K layers. 经编码的数据流也被称为码字,并且相当于传输块,该传输块是由MAC层提供的数据块。 The encoded data stream is also referred to as a codeword, corresponding to the transport block and the transport block is a data block provided by the MAC layer. 一个传输块(TB)被编码成一个码字,并且每个码字以一个或更多个层的形式被发送到接收装置。 A transport block (TB) is encoded into a codeword and each codeword is transmitted to the receiving means in the form of one or more layers. 对于频率上转换,RF单元13可以包括振荡器。 For frequency conversion, RF unit 13 may include an oscillator. RF单元13可以包括Nt (其中Nt 是正整数)个发射天线。 The RF unit 13 may include Nt (where Nt is a positive integer) transmission antennas.

[0243] 接收装置20的信号处理过程是发送装置10的信号处理过程的相反过程。 Signal processing [0243] the receiving apparatus 20 is the reverse process of transmission of the signal processing device 10. 在处理器21的控制下,接收装置20的RF单元23接收由发送装置10发送的RF信号。 The RF unit under control of processor 21, 20 of the receiving apparatus 23 receives the RF signal transmitted by the transmitting means 10. RF单元23可以包括Nr个接收天线,并且将通过接收天线接收到的每个信号频率下转换为基带信号。 The RF unit 23 may include Nr receive antennas, and converts each baseband signal into a signal frequency received via the receiving antenna. RF单元23 可以包括用于频率下转换的振荡器。 The RF unit 23 may include an oscillator for frequency conversion. 处理器21对通过接收天线接收到的无线电信号进行解码和解调,并且还原出发送装置10希望发送的数据。 The processor 21 received by the receiving antenna and demodulating the radio signal is decoded, and the reduction device 10 transmits the desired data to be transmitted.

[0244] RF单元13和23包括一个或更多个天线。 [0244] RF unit 13 and 23 includes one or more antennas. 天线执行将由RF单元13和23处理的信号发送到外部或者从外部接收无线电信号以将这些无线信号传送到RF单元13和23的功能。 Execution by the RF signal of the antenna units 13 and 23 to the external process or receives a radio signal to transmit wireless signals to the RF functional unit 13 and 23 from the outside. 天线也可以被称为天线端口。 The antenna may also be referred to as an antenna port. 每个天线可以对应于一个物理天线,或者可以由多于一个的物理天线元件的组合来配置。 Each antenna may correspond to one physical antenna or may be configured by more than one physical antenna element combinations. 通过每个天线发送的信号不能由接收装置20分解。 Signals transmitted by each antenna can not be decomposed by the receiving means 20. 通过天线发送的参考信号(RS)限定从接收装置20的角度看的对应的天线,并且使接收装置20能够针对天线执行信道估计,不管信道是来自一个物理天线的单RF信道还是来自包括该天线的多个物理天线元件的复合信道。 A reference signal (RS) transmitted by the antenna is defined from the perspective of the receiving apparatus 20 viewed corresponding to the antenna, and the receiving apparatus 20 can be estimated for the antenna to perform channel, regardless of the channel from one physical antenna, a single RF channel is from and including the antenna a plurality of composite channels physical antenna elements. 也就是说,天线被限定为使得在天线上发送符号的信道可以从在相同的天线上发送另一个符号的信道而导出。 That is, the antenna is defined such that a symbol transmitted on the antenna channel may be derived from another symbol transmitted on the same antenna channel. 支持使用多个天线来发送和接收数据的MMO 功能的RF单元可以连接到两个或更多个天线。 The RF unit supports a plurality of antennas to transmit and receive data using the MMO functions may be connected to two or more antennas.

[0245] 在本发明的实施方式中,UE在上行链路上用作发送装置10并且在下行链路上用作接收装置20。 [0245] In an embodiment of the present invention, UE as a transmitting apparatus 10 on the uplink and on the downlink 20 as a receiving device. 在本发明的实施方式中,eNB在上行链路上用作接收装置20并且在下行链路上用作发送装置10。 In an embodiment of the present invention, eNB 20 as a receiving device and used on the downlink transmission apparatus 10 on the uplink.

[0246] 发送装置10和/或接收装置20可以被配置为本发明的一个或更多个实施方式的组合。 [0246] 10 composition and / or receiving device 20 of the present invention may be configured with one or more embodiments of the transmitting device.

[0247] 已经给出了本发明的示例性实施方式的详细描述,以使得本领域技术人员能够实现和实践本发明。 [0247] detailed description has been given of exemplary embodiments of the present invention to enable those skilled in the art to make and practice the invention. 尽管已经参照示例性实施方式描述了本发明,但是本领域技术人员将要领会的是,在不脱离在所附权利要求书中描述的本发明的精神或范围的情况下可以对本发明进行各种修改和变型。 While the present invention has been described with reference to exemplary embodiments, those skilled in the art will be appreciated that various modifications may be made in the present invention without departing from the spirit or scope of the invention described in the appended claims and variations. 例如,本领域技术人员可以按照相互组合的方式使用上述实施方式中描述的各种构造。 For example, those skilled in the art can use various configurations described in the above embodiment according to combination with each other. 因此,本发明不应该局限于本文中描述的特定实施方式,而应该符合与本文中公开的原理和新颖特征一致的最宽范围。 Accordingly, the present invention should not be limited to the particular embodiments described herein, but should be consistent with the disclosure herein with the principles and novel features of the widest range.

[0248] 工业实用性 [0248] Industrial Applicability

[0249] 本发明能够被用于诸如UE、中继器、eNB等这样的无线通信系统。 [0249] The present invention can be used, such as a UE, a repeater, eNB, etc. Such a wireless communication system.

Claims (20)

1. 一种在无线通信系统中由用户设备UE接收下行链路控制信号的方法,该方法包括以下步骤: 当下行链路DL带宽包括至少25个资源块RB并且下行链路控制信息DCI格式是DCI格式2、2A、2B、2C和2D中的一个时,监视增强型物理下行链路控制信道EPDCCH集合中的多个EPDCCH候选,以使用从2开始的聚合级别来对从基站BS发送的EPDCCH进行解码; 对所述BS发送的所述EPDCCH进行解码;以及对与经解码的EPDCCH对应的物理下行链路共享信道I3DSCH进行解码。 1. A receiver in a wireless communication system, a method by a user equipment UE downlink control signal, the method comprising the steps of: the downlink comprises at least 25 DL bandwidth resource block RB and downlink control information DCI format DCI formats 2, 2A, 2B, 2C and 2D, a time, a plurality of candidate EPDCCH EPDCCH physical downlink control channel monitoring enhanced in order to use the aggregation level of 2 to begin transmitted from the base station BS EPDCCH decoding; EPDCCH the BS transmits the decoding; and the decoded EPDCCH corresponding to a physical downlink shared channel I3DSCH decoded.
2. 根据权利要求1所述的方法,其中,如果构成所述EPDCCH集合的物理资源块PRB对的数目为4,则在聚合级别2、4、8和16下将所述EPDCCH候选的数目分别设置为8个、4个、2个和1 个。 2. The method according to claim 1, wherein, if the number of physical resource blocks PRB for the EPDCCH 4 is configured, then the aggregation level 4, 8 and 16 to lower the number of candidates respectively EPDCCH is set to 8, 4, 2 and 1.
3. 根据权利要求1所述的方法,该方法还包括以下步骤: 从所述BS接收与针对每个聚合级别L的EPDCCH候选的数目有关的信息。 3. The method according to claim 1, the method further comprising the steps of: receiving information relating to the number of each EPDCCH candidates for aggregation level L from the BS.
4. 根据权利要求1所述的方法,该方法还包括以下步骤: 如果聚合级别LI被设置为大于在所述EPDCCH集合中包含的增强型控制信道元素ECCE 的数目,则将针对所述Ll的EPDCCH候选分配给其它的聚合级别。 4. The method according to claim 1, the method further comprising the step of: if the aggregation level LI is set to be greater than the number of enhanced control channel elements included in the ECCE EPDCCH set, then Ll is for the EPDCCH candidate to the other aggregation level.
5. 根据权利要求4所述的方法,其中,使用从所述EPDCCH集合中设置的聚合级别当中的小于所述Ll的聚合级别中的最高聚合级别到最低聚合级别的优先次序,尝试将针对所述Ll 的EPDCCH候选分配给所述其它的聚合级别。 5. The method of claim 4, wherein, among the aggregation level is less than the use provided from the EPDCCH highest aggregation level Ll of the aggregation level in the lowest priority level of the polymerization, the attempt for Ll said EPDCCH candidates assigned to the other aggregation level.
6. 根据权利要求5所述的方法,其中,如果不能将附加的EPDCCH候选分配给小于所述Ll 的聚合级别当中的特定聚合级别,则将所述附加的EPDCCH候选分配给继所述特定聚合级别之后的次高的聚合级别。 6. The method according to claim 5, wherein, if the candidate can not be allocated to the additional EPDCCH which is smaller than the aggregation level Ll specific aggregation level, then the additional EPDCCH candidates assigned to the following specific aggregation the second highest level after level of aggregation.
7. 根据权利要求1所述的方法,其中,根据每个聚合级别L、所述EPDCCH集合中的物理资源块PRB对的数目N和每PRB对增强型控制信道元素ECCE的数目来决定所述EPDCCH集合中的EPDCCH候选的数目,并且其中,对于每个N,EPDCCH候选的数目是固定的。 7. The method according to claim 1, wherein, according to each aggregation level L, and each of the number N PRB physical resource block PRB of the EPDCCH for enhancing the number of control channel elements to determine the ECCE number of EPDCCH candidates EPDCCH set, and wherein, for each N, the number of candidates is fixed EPDCCH.
8. 根据权利要求1所述的方法,其中,如果存在两个EPDCCH集合,则将所述两个EPDCCH 集合设置为具有不同的最小聚合级别。 8. The method according to claim 1, wherein, if there are two EPDCCH set, then the set of two EPDCCH set to have different minimum aggregation level.
9. 根据权利要求1所述的方法,其中,如果存在两个EPDCCH集合,则按照以下方式来设置所述两个EPDCCH集合:各个聚合级别具有不同数目的EPDCCH候选。 9. The method according to claim 1, wherein, if there are two EPDCCH set, the following two ways to set the EPDCCH set: each aggregation level having a different number of EPDCCH candidates.
10. 根据权利要求9所述的方法,其中,如果在第一EPDCCH集合中设置了高于在所述第一EPDCCH集合中包含的增强型控制信道元素ECCE的数目的聚合级别L2,则将针对所述L2的EPDCCH候选分配给第二EPDCCH集合。 10. The method according to claim 9, wherein, if the set number of enhanced control channel elements included in ECCE is higher than the first set EPDCCH aggregation level L2 in the first EPDCCH set, then for L2 EPDCCH candidates allocated to the second EPDCCH set.
11. 根据权利要求10所述的方法,其中,使用从所述第一EPDCCH集合中设置的聚合级别当中的小于所述L2的聚合级别中的最高聚合级别到最低聚合级别的优先次序,尝试将针对所述L2的EPDCCH候选分配给所述第二EPDCCH集合。 11. The method of claim 10, wherein L2 is smaller than the aggregation level from among the first set using EPDCCH aggregation level set in the highest level to the lowest priority polymerization aggregation level, attempts to assigned to the second set of EPDCCH EPDCCH candidates for the L2.
12. 根据权利要求11所述的方法,其中,如果不能将附加的EPDCCH候选分配给小于所述L2的聚合级别当中的特定聚合级别,则将所述附加的EPDCCH候选分配给继所述特定聚合级别之后的次高的聚合级别。 12. The method of claim 11, wherein, if not additional EPDCCH candidates allocated among the aggregation level is less than the specific aggregation level L2, then the additional EPDCCH candidates assigned to the following specific aggregation the second highest level after level of aggregation.
13. 根据权利要求1所述的方法,其中,如果不能将附加的EPDCCH候选分配给小于阈值聚合级别的聚合级别当中的特定聚合级别,则将所述附加的EPDCCH候选分配给继所述特定聚合级别之后的次高的聚合级别。 13. The method according to claim 1, wherein, if not additional EPDCCH candidates allocated among the aggregation level is less than the threshold level of the particular polymerization aggregation level, then the additional EPDCCH candidates assigned to the following specific aggregation the second highest level after level of aggregation.
14. 根据权利要求13所述的方法,其中,将所述附加的EroCCH候选分配给继所述特定聚合级别之后的次高的聚合级别受到增强型控制信道元素ECCE的总数目的限制,并且其中,能够被生成的所述ECCE的总数目为32。 14. The method according to claim 13, wherein the additional EroCCH candidate to the second highest, following aggregation level after a certain aggregation level by the total number of enhanced control channel elements ECCE limited, and wherein, ECCE is the total number of 32 can be generated.
15. —种被配置为在无线通信系统中接收下行链路控制信号的用户设备UE,该UE包括: 射频RF单元;以及处理器,该处理器控制所述RF单元, 其中,所述处理器还执行以下操作: 当下行链路DL带宽包括至少25个资源块RB并且下行链路控制信息DCI格式是DCI格式2、2A、2B、2C和2D中的一个时,监视增强型物理下行链路控制信道EPDCCH集合中的多个EPDCCH候选,以使用从2开始的聚合级别来对从基站BS发送的EPDCCH进行解码, 对所述BS发送的所述EPDCCH进行解码,以及对与经解码的EPDCCH对应的物理下行链路共享信道I3DSCH进行解码。 15. - species is configured to receive a downlink control signal in a wireless communication system, a user equipment UE, the UE comprising: a radio frequency RF unit; and a processor, the processor controls the RF unit, wherein the processor further performs the following operations: the downlink comprises at least 25 DL bandwidth resource block RB and downlink control information DCI format is DCI formats 2, 2A, 2B, 2C and 2D, a time monitoring enhanced physical downlink a plurality of control channel EPDCCH set EPDCCH candidates to use to decode the transmission from the base station BS EPDCCH aggregation level 2 from the beginning, the BS transmits the EPDCCH decoding, and decoded to correspond with EPDCCH physical downlink shared channel I3DSCH decoded.
16. 根据权利要求15所述的UE,其中,如果构成所述EPDCCH集合的物理资源块PRB对的数目为4,则在聚合级别2、4、8和16下将所述EPDCCH候选的数目分别设置为8个、4个、2个和1 个。 Number 16. UE according to claim 15, wherein the number of physical resource blocks PRB for the EPDCCH If the configuration is 4, then the aggregation level 4, 8 and 16 at the respective candidate EPDCCH is set to 8, 4, 2 and 1.
17. 根据权利要求15所述的UE,如果存在两个EPDCCH集合,则按照以下方式来设置所述两个EPDCCH集合:各个聚合级别具有不同数目的EPDCCH候选。 17. UE according to claim 15, if there is a set of two EPDCCH, the following two ways to set the EPDCCH set: each aggregation level having a different number of EPDCCH candidates.
18. 根据权利要求17所述的UE,其中,如果在第一EroCCH集合中设置了高于在所述第一EPDCCH集合中包含的增强型控制信道元素ECCE的数目的聚合级别L2,则将针对所述L2的EPDCCH候选分配给第二EPDCCH集合。 18. The UE according to claim 17, wherein, if the set number of enhanced control channel elements included in ECCE is higher than the first set EPDCCH L2 aggregation level set in the first EroCCH, then for L2 EPDCCH candidates allocated to the second EPDCCH set.
19. 根据权利要求18所述的UE,其中,使用从所述第一EPDCCH集合中设置的聚合级别当中的小于所述L2的聚合级别中的最高聚合级别到最低聚合级别的优先次序,尝试将针对所述L2的EPDCCH候选分配给所述第二EPDCCH集合。 19. UE according to claim 18, wherein L2 is using less than the maximum aggregation level in the aggregation level to the lowest priority level among the polymerization aggregation level provided from the first set EPDCCH, attempts to assigned to the second set of EPDCCH EPDCCH candidates for the L2.
20. 根据权利要求19所述的UE,其中,如果不能将附加的EPDCCH候选分配给小于所述L2 的聚合级别当中的特定聚合级别,则将所述附加的EPDCCH候选分配给继所述特定聚合级别之后的次高的聚合级别。 20. The UE according to claim 19, wherein, if not additional EPDCCH candidates allocated among the L2 smaller than a certain aggregation level aggregation level, then the additional EPDCCH candidates assigned to the following specific aggregation the second highest level after level of aggregation.
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